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Finding the Fourth Proportional to 242,562.40, 363,843.60 and 153,988.90

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Solution

The fourth proportional to 242,562.40, 363,843.60 and 153,988.90 is: 230,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,562.40 : 363,843.60 = 153,988.90 : x
  2. Step 2: Convert to fraction form
    242,562.40/363,843.60 = 153,988.90/x
  3. Step 3: Cross multiply
    242,562.40x = 363,843.60 × 153,988.90
  4. Step 4: Simplify right side
    242,562.40x = 56,027,875,736.04
  5. Step 5: Solve for x
    x = 56,027,875,736.04/242,562.40
  6. Step 6: Final answer
    x = 230,983.35

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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.