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Finding the Fourth Proportional to 242,703.44, 334,932.42 and 135,280.40

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Solution

The fourth proportional to 242,703.44, 334,932.42 and 135,280.40 is: 186,687.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,703.44 : 334,932.42 = 135,280.40 : x
  2. Step 2: Convert to fraction form
    242,703.44/334,932.42 = 135,280.40/x
  3. Step 3: Cross multiply
    242,703.44x = 334,932.42 × 135,280.40
  4. Step 4: Simplify right side
    242,703.44x = 45,309,791,750.57
  5. Step 5: Solve for x
    x = 45,309,791,750.57/242,703.44
  6. Step 6: Final answer
    x = 186,687.88

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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.