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Finding the Fourth Proportional to 295,422.40, 442,615.20 and 242,545.60

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Solution

The fourth proportional to 295,422.40, 442,615.20 and 242,545.60 is: 363,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,422.40 : 442,615.20 = 242,545.60 : x
  2. Step 2: Convert to fraction form
    295,422.40/442,615.20 = 242,545.60/x
  3. Step 3: Cross multiply
    295,422.40x = 442,615.20 × 242,545.60
  4. Step 4: Simplify right side
    295,422.40x = 107,354,369,253.12
  5. Step 5: Solve for x
    x = 107,354,369,253.12/295,422.40
  6. Step 6: Final answer
    x = 363,392.79

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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.