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Finding the Fourth Proportional to 242,634.40, 363,087.60 and 153,930.40

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Solution

The fourth proportional to 242,634.40, 363,087.60 and 153,930.40 is: 230,347.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,634.40 : 363,087.60 = 153,930.40 : x
  2. Step 2: Convert to fraction form
    242,634.40/363,087.60 = 153,930.40/x
  3. Step 3: Cross multiply
    242,634.40x = 363,087.60 × 153,930.40
  4. Step 4: Simplify right side
    242,634.40x = 55,890,219,503.04
  5. Step 5: Solve for x
    x = 55,890,219,503.04/242,634.40
  6. Step 6: Final answer
    x = 230,347.47

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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.