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Finding the Fourth Proportional to 258,447.80, 388,535.70 and 224,233.40

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Solution

The fourth proportional to 258,447.80, 388,535.70 and 224,233.40 is: 337,099.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,447.80 : 388,535.70 = 224,233.40 : x
  2. Step 2: Convert to fraction form
    258,447.80/388,535.70 = 224,233.40/x
  3. Step 3: Cross multiply
    258,447.80x = 388,535.70 × 224,233.40
  4. Step 4: Simplify right side
    258,447.80x = 87,122,681,032.38
  5. Step 5: Solve for x
    x = 87,122,681,032.38/258,447.80
  6. Step 6: Final answer
    x = 337,099.72

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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.