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Finding the Fourth Proportional to 243,484.76, 335,987.12 and 136,039.88

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Solution

The fourth proportional to 243,484.76, 335,987.12 and 136,039.88 is: 187,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,484.76 : 335,987.12 = 136,039.88 : x
  2. Step 2: Convert to fraction form
    243,484.76/335,987.12 = 136,039.88/x
  3. Step 3: Cross multiply
    243,484.76x = 335,987.12 × 136,039.88
  4. Step 4: Simplify right side
    243,484.76x = 45,707,647,486.35
  5. Step 5: Solve for x
    x = 45,707,647,486.35/243,484.76
  6. Step 6: Final answer
    x = 187,722.83

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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.