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Finding the Fourth Proportional to 545,102.10, 817,653.15 and 356,145.30

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Solution

The fourth proportional to 545,102.10, 817,653.15 and 356,145.30 is: 534,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,102.10 : 817,653.15 = 356,145.30 : x
  2. Step 2: Convert to fraction form
    545,102.10/817,653.15 = 356,145.30/x
  3. Step 3: Cross multiply
    545,102.10x = 817,653.15 × 356,145.30
  4. Step 4: Simplify right side
    545,102.10x = 291,203,326,402.70
  5. Step 5: Solve for x
    x = 291,203,326,402.70/545,102.10
  6. Step 6: Final answer
    x = 534,217.95

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Similar ratio
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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.