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Finding the Fourth Proportional to 243,573.75, 336,108.68 and 136,141.32

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Solution

The fourth proportional to 243,573.75, 336,108.68 and 136,141.32 is: 187,862.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,573.75 : 336,108.68 = 136,141.32 : x
  2. Step 2: Convert to fraction form
    243,573.75/336,108.68 = 136,141.32/x
  3. Step 3: Cross multiply
    243,573.75x = 336,108.68 × 136,141.32
  4. Step 4: Simplify right side
    243,573.75x = 45,758,279,358.66
  5. Step 5: Solve for x
    x = 45,758,279,358.66/243,573.75
  6. Step 6: Final answer
    x = 187,862.11

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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.