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Finding the Fourth Proportional to 228,549, 315,397.62 and 127,947.72

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Solution

The fourth proportional to 228,549, 315,397.62 and 127,947.72 is: 176,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,549 : 315,397.62 = 127,947.72 : x
  2. Step 2: Convert to fraction form
    228,549/315,397.62 = 127,947.72/x
  3. Step 3: Cross multiply
    228,549x = 315,397.62 × 127,947.72
  4. Step 4: Simplify right side
    228,549x = 40,354,406,372.43
  5. Step 5: Solve for x
    x = 40,354,406,372.43/228,549
  6. Step 6: Final answer
    x = 176,567.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.