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Finding the Fourth Proportional to 295,079.60, 442,036.20 and 161,721.20

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Solution

The fourth proportional to 295,079.60, 442,036.20 and 161,721.20 is: 242,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,079.60 : 442,036.20 = 161,721.20 : x
  2. Step 2: Convert to fraction form
    295,079.60/442,036.20 = 161,721.20/x
  3. Step 3: Cross multiply
    295,079.60x = 442,036.20 × 161,721.20
  4. Step 4: Simplify right side
    295,079.60x = 71,486,624,707.44
  5. Step 5: Solve for x
    x = 71,486,624,707.44/295,079.60
  6. Step 6: Final answer
    x = 242,262.17

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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.