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Finding the Fourth Proportional to 318,549.73, 439,499.67 and 180,705.92

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Solution

The fourth proportional to 318,549.73, 439,499.67 and 180,705.92 is: 249,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,549.73 : 439,499.67 = 180,705.92 : x
  2. Step 2: Convert to fraction form
    318,549.73/439,499.67 = 180,705.92/x
  3. Step 3: Cross multiply
    318,549.73x = 439,499.67 × 180,705.92
  4. Step 4: Simplify right side
    318,549.73x = 79,420,194,674.70
  5. Step 5: Solve for x
    x = 79,420,194,674.70/318,549.73
  6. Step 6: Final answer
    x = 249,318.04

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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.