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Finding the Fourth Proportional to 424,500.05, 636,731.85 and 144,017.30

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Solution

The fourth proportional to 424,500.05, 636,731.85 and 144,017.30 is: 216,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,500.05 : 636,731.85 = 144,017.30 : x
  2. Step 2: Convert to fraction form
    424,500.05/636,731.85 = 144,017.30/x
  3. Step 3: Cross multiply
    424,500.05x = 636,731.85 × 144,017.30
  4. Step 4: Simplify right side
    424,500.05x = 91,700,401,861.01
  5. Step 5: Solve for x
    x = 91,700,401,861.01/424,500.05
  6. Step 6: Final answer
    x = 216,019.77

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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.