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Finding the Fourth Proportional to 160,331.40, 240,302.70 and 71,490.60

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Solution

The fourth proportional to 160,331.40, 240,302.70 and 71,490.60 is: 107,149.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,331.40 : 240,302.70 = 71,490.60 : x
  2. Step 2: Convert to fraction form
    160,331.40/240,302.70 = 71,490.60/x
  3. Step 3: Cross multiply
    160,331.40x = 240,302.70 × 71,490.60
  4. Step 4: Simplify right side
    160,331.40x = 17,179,384,204.62
  5. Step 5: Solve for x
    x = 17,179,384,204.62/160,331.40
  6. Step 6: Final answer
    x = 107,149.22

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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.