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Finding the Fourth Proportional to 242,138.50, 362,966.74 and 115,630.85

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Solution

The fourth proportional to 242,138.50, 362,966.74 and 115,630.85 is: 173,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,138.50 : 362,966.74 = 115,630.85 : x
  2. Step 2: Convert to fraction form
    242,138.50/362,966.74 = 115,630.85/x
  3. Step 3: Cross multiply
    242,138.50x = 362,966.74 × 115,630.85
  4. Step 4: Simplify right side
    242,138.50x = 41,970,152,667.93
  5. Step 5: Solve for x
    x = 41,970,152,667.93/242,138.50
  6. Step 6: Final answer
    x = 173,331.18

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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.