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Finding the Fourth Proportional to 285,404.30, 427,807.56 and 95,818.13

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Solution

The fourth proportional to 285,404.30, 427,807.56 and 95,818.13 is: 143,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,404.30 : 427,807.56 = 95,818.13 : x
  2. Step 2: Convert to fraction form
    285,404.30/427,807.56 = 95,818.13/x
  3. Step 3: Cross multiply
    285,404.30x = 427,807.56 × 95,818.13
  4. Step 4: Simplify right side
    285,404.30x = 40,991,720,399.06
  5. Step 5: Solve for x
    x = 40,991,720,399.06/285,404.30
  6. Step 6: Final answer
    x = 143,626.85

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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.