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Finding the Fourth Proportional to 243,575.46, 336,149.82 and 136,145.88

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Solution

The fourth proportional to 243,575.46, 336,149.82 and 136,145.88 is: 187,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,575.46 : 336,149.82 = 136,145.88 : x
  2. Step 2: Convert to fraction form
    243,575.46/336,149.82 = 136,145.88/x
  3. Step 3: Cross multiply
    243,575.46x = 336,149.82 × 136,145.88
  4. Step 4: Simplify right side
    243,575.46x = 45,765,413,055.74
  5. Step 5: Solve for x
    x = 45,765,413,055.74/243,575.46
  6. Step 6: Final answer
    x = 187,890.08

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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.