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Finding the Fourth Proportional to 157,663.80, 236,495.70 and 154,553.40

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Solution

The fourth proportional to 157,663.80, 236,495.70 and 154,553.40 is: 231,830.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,663.80 : 236,495.70 = 154,553.40 : x
  2. Step 2: Convert to fraction form
    157,663.80/236,495.70 = 154,553.40/x
  3. Step 3: Cross multiply
    157,663.80x = 236,495.70 × 154,553.40
  4. Step 4: Simplify right side
    157,663.80x = 36,551,214,520.38
  5. Step 5: Solve for x
    x = 36,551,214,520.38/157,663.80
  6. Step 6: Final answer
    x = 231,830.10

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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.