Home / 242,720.75-334,965.98-135,291.57

Finding the Fourth Proportional to 242,720.75, 334,965.98 and 135,291.57

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Solution

The fourth proportional to 242,720.75, 334,965.98 and 135,291.57 is: 186,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,720.75 : 334,965.98 = 135,291.57 : x
  2. Step 2: Convert to fraction form
    242,720.75/334,965.98 = 135,291.57/x
  3. Step 3: Cross multiply
    242,720.75x = 334,965.98 × 135,291.57
  4. Step 4: Simplify right side
    242,720.75x = 45,318,072,412.90
  5. Step 5: Solve for x
    x = 45,318,072,412.90/242,720.75
  6. Step 6: Final answer
    x = 186,708.68

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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.