Home / 243,720.22-336,327.61-134,821.72

Finding the Fourth Proportional to 243,720.22, 336,327.61 and 134,821.72

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Solution

The fourth proportional to 243,720.22, 336,327.61 and 134,821.72 is: 186,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,720.22 : 336,327.61 = 134,821.72 : x
  2. Step 2: Convert to fraction form
    243,720.22/336,327.61 = 134,821.72/x
  3. Step 3: Cross multiply
    243,720.22x = 336,327.61 × 134,821.72
  4. Step 4: Simplify right side
    243,720.22x = 45,344,266,189.58
  5. Step 5: Solve for x
    x = 45,344,266,189.58/243,720.22
  6. Step 6: Final answer
    x = 186,050.49

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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.