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Finding the Fourth Proportional to 295,458.40, 442,669.20 and 242,581.60

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Solution

The fourth proportional to 295,458.40, 442,669.20 and 242,581.60 is: 363,446.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,458.40 : 442,669.20 = 242,581.60 : x
  2. Step 2: Convert to fraction form
    295,458.40/442,669.20 = 242,581.60/x
  3. Step 3: Cross multiply
    295,458.40x = 442,669.20 × 242,581.60
  4. Step 4: Simplify right side
    295,458.40x = 107,383,402,806.72
  5. Step 5: Solve for x
    x = 107,383,402,806.72/295,458.40
  6. Step 6: Final answer
    x = 363,446.78

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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.