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Finding the Fourth Proportional to 242,999.65, 335,333.01 and 135,566.92

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Solution

The fourth proportional to 242,999.65, 335,333.01 and 135,566.92 is: 187,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,999.65 : 335,333.01 = 135,566.92 : x
  2. Step 2: Convert to fraction form
    242,999.65/335,333.01 = 135,566.92/x
  3. Step 3: Cross multiply
    242,999.65x = 335,333.01 × 135,566.92
  4. Step 4: Simplify right side
    242,999.65x = 45,460,063,340.03
  5. Step 5: Solve for x
    x = 45,460,063,340.03/242,999.65
  6. Step 6: Final answer
    x = 187,078.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.