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Finding the Fourth Proportional to 612.77, 845.53 and 364.10

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Solution

The fourth proportional to 612.77, 845.53 and 364.10 is: 502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.77 : 845.53 = 364.10 : x
  2. Step 2: Convert to fraction form
    612.77/845.53 = 364.10/x
  3. Step 3: Cross multiply
    612.77x = 845.53 × 364.10
  4. Step 4: Simplify right side
    612.77x = 307,852.34
  5. Step 5: Solve for x
    x = 307,852.34/612.77
  6. Step 6: Final answer
    x = 502.40

Related Problems

Find fourth proportional to 306.38, 422.76 and 182.05
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.