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Finding the Fourth Proportional to 607.92, 911.55 and 283.51

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Solution

The fourth proportional to 607.92, 911.55 and 283.51 is: 425.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.92 : 911.55 = 283.51 : x
  2. Step 2: Convert to fraction form
    607.92/911.55 = 283.51/x
  3. Step 3: Cross multiply
    607.92x = 911.55 × 283.51
  4. Step 4: Simplify right side
    607.92x = 258,433.54
  5. Step 5: Solve for x
    x = 258,433.54/607.92
  6. Step 6: Final answer
    x = 425.11

Related Problems

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Half scale
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Double scale
Find fourth proportional to 608.92, 913.05 and 284.51
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.