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Finding the Fourth Proportional to 318,305.38, 477,384.01 and 93,605.71

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Solution

The fourth proportional to 318,305.38, 477,384.01 and 93,605.71 is: 140,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,305.38 : 477,384.01 = 93,605.71 : x
  2. Step 2: Convert to fraction form
    318,305.38/477,384.01 = 93,605.71/x
  3. Step 3: Cross multiply
    318,305.38x = 477,384.01 × 93,605.71
  4. Step 4: Simplify right side
    318,305.38x = 44,685,869,198.70
  5. Step 5: Solve for x
    x = 44,685,869,198.70/318,305.38
  6. Step 6: Final answer
    x = 140,386.79

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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.