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Finding the Fourth Proportional to 243,467.62, 335,979.02 and 136,038.46

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Solution

The fourth proportional to 243,467.62, 335,979.02 and 136,038.46 is: 187,729.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,467.62 : 335,979.02 = 136,038.46 : x
  2. Step 2: Convert to fraction form
    243,467.62/335,979.02 = 136,038.46/x
  3. Step 3: Cross multiply
    243,467.62x = 335,979.02 × 136,038.46
  4. Step 4: Simplify right side
    243,467.62x = 45,706,068,473.11
  5. Step 5: Solve for x
    x = 45,706,068,473.11/243,467.62
  6. Step 6: Final answer
    x = 187,729.56

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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.