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Finding the Fourth Proportional to 607.01, 910.56 and 260.36

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Solution

The fourth proportional to 607.01, 910.56 and 260.36 is: 390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.01 : 910.56 = 260.36 : x
  2. Step 2: Convert to fraction form
    607.01/910.56 = 260.36/x
  3. Step 3: Cross multiply
    607.01x = 910.56 × 260.36
  4. Step 4: Simplify right side
    607.01x = 237,068.85
  5. Step 5: Solve for x
    x = 237,068.85/607.01
  6. Step 6: Final answer
    x = 390.56

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Double scale
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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.