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Finding the Fourth Proportional to 318,701.80, 478,110.30 and 160,532.20

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Solution

The fourth proportional to 318,701.80, 478,110.30 and 160,532.20 is: 240,827.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,701.80 : 478,110.30 = 160,532.20 : x
  2. Step 2: Convert to fraction form
    318,701.80/478,110.30 = 160,532.20/x
  3. Step 3: Cross multiply
    318,701.80x = 478,110.30 × 160,532.20
  4. Step 4: Simplify right side
    318,701.80x = 76,752,098,301.66
  5. Step 5: Solve for x
    x = 76,752,098,301.66/318,701.80
  6. Step 6: Final answer
    x = 240,827.31

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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.