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Finding the Fourth Proportional to 382,172.52, 573,340.34 and 129,444.16

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Solution

The fourth proportional to 382,172.52, 573,340.34 and 129,444.16 is: 194,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,172.52 : 573,340.34 = 129,444.16 : x
  2. Step 2: Convert to fraction form
    382,172.52/573,340.34 = 129,444.16/x
  3. Step 3: Cross multiply
    382,172.52x = 573,340.34 × 129,444.16
  4. Step 4: Simplify right side
    382,172.52x = 74,215,558,705.41
  5. Step 5: Solve for x
    x = 74,215,558,705.41/382,172.52
  6. Step 6: Final answer
    x = 194,193.86

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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.