Home / 242,723.76-334,970.13-135,294.57

Finding the Fourth Proportional to 242,723.76, 334,970.13 and 135,294.57

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Solution

The fourth proportional to 242,723.76, 334,970.13 and 135,294.57 is: 186,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,723.76 : 334,970.13 = 135,294.57 : x
  2. Step 2: Convert to fraction form
    242,723.76/334,970.13 = 135,294.57/x
  3. Step 3: Cross multiply
    242,723.76x = 334,970.13 × 135,294.57
  4. Step 4: Simplify right side
    242,723.76x = 45,319,639,701.19
  5. Step 5: Solve for x
    x = 45,319,639,701.19/242,723.76
  6. Step 6: Final answer
    x = 186,712.83

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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.