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Finding the Fourth Proportional to 258,446.80, 388,534.20 and 224,232.40

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Solution

The fourth proportional to 258,446.80, 388,534.20 and 224,232.40 is: 337,098.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,446.80 : 388,534.20 = 224,232.40 : x
  2. Step 2: Convert to fraction form
    258,446.80/388,534.20 = 224,232.40/x
  3. Step 3: Cross multiply
    258,446.80x = 388,534.20 × 224,232.40
  4. Step 4: Simplify right side
    258,446.80x = 87,121,956,148.08
  5. Step 5: Solve for x
    x = 87,121,956,148.08/258,446.80
  6. Step 6: Final answer
    x = 337,098.22

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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.