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Finding the Fourth Proportional to 295,456.40, 442,666.20 and 242,579.60

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Solution

The fourth proportional to 295,456.40, 442,666.20 and 242,579.60 is: 363,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,456.40 : 442,666.20 = 242,579.60 : x
  2. Step 2: Convert to fraction form
    295,456.40/442,666.20 = 242,579.60/x
  3. Step 3: Cross multiply
    295,456.40x = 442,666.20 × 242,579.60
  4. Step 4: Simplify right side
    295,456.40x = 107,381,789,729.52
  5. Step 5: Solve for x
    x = 107,381,789,729.52/295,456.40
  6. Step 6: Final answer
    x = 363,443.78

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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.