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Finding the Fourth Proportional to 295,009.20, 442,513.80 and 242,521.20

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Solution

The fourth proportional to 295,009.20, 442,513.80 and 242,521.20 is: 363,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,009.20 : 442,513.80 = 242,521.20 : x
  2. Step 2: Convert to fraction form
    295,009.20/442,513.80 = 242,521.20/x
  3. Step 3: Cross multiply
    295,009.20x = 442,513.80 × 242,521.20
  4. Step 4: Simplify right side
    295,009.20x = 107,318,977,792.56
  5. Step 5: Solve for x
    x = 107,318,977,792.56/295,009.20
  6. Step 6: Final answer
    x = 363,781.80

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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.