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Finding the Fourth Proportional to 243,439.30, 335,940.03 and 136,010.13

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Solution

The fourth proportional to 243,439.30, 335,940.03 and 136,010.13 is: 187,690.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,439.30 : 335,940.03 = 136,010.13 : x
  2. Step 2: Convert to fraction form
    243,439.30/335,940.03 = 136,010.13/x
  3. Step 3: Cross multiply
    243,439.30x = 335,940.03 × 136,010.13
  4. Step 4: Simplify right side
    243,439.30x = 45,691,247,152.50
  5. Step 5: Solve for x
    x = 45,691,247,152.50/243,439.30
  6. Step 6: Final answer
    x = 187,690.51

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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.