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Finding the Fourth Proportional to 243,468.02, 335,985.15 and 136,038.13

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Solution

The fourth proportional to 243,468.02, 335,985.15 and 136,038.13 is: 187,732.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,468.02 : 335,985.15 = 136,038.13 : x
  2. Step 2: Convert to fraction form
    243,468.02/335,985.15 = 136,038.13/x
  3. Step 3: Cross multiply
    243,468.02x = 335,985.15 × 136,038.13
  4. Step 4: Simplify right side
    243,468.02x = 45,706,793,073.87
  5. Step 5: Solve for x
    x = 45,706,793,073.87/243,468.02
  6. Step 6: Final answer
    x = 187,732.23

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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.