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Finding the Fourth Proportional to 258,443.80, 388,529.70 and 224,229.40

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Solution

The fourth proportional to 258,443.80, 388,529.70 and 224,229.40 is: 337,093.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,443.80 : 388,529.70 = 224,229.40 : x
  2. Step 2: Convert to fraction form
    258,443.80/388,529.70 = 224,229.40/x
  3. Step 3: Cross multiply
    258,443.80x = 388,529.70 × 224,229.40
  4. Step 4: Simplify right side
    258,443.80x = 87,119,781,513.18
  5. Step 5: Solve for x
    x = 87,119,781,513.18/258,443.80
  6. Step 6: Final answer
    x = 337,093.72

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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.