Home / 243,216.38-364,520-130,619.90

Finding the Fourth Proportional to 243,216.38, 364,520 and 130,619.90

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Solution

The fourth proportional to 243,216.38, 364,520 and 130,619.90 is: 195,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,216.38 : 364,520 = 130,619.90 : x
  2. Step 2: Convert to fraction form
    243,216.38/364,520 = 130,619.90/x
  3. Step 3: Cross multiply
    243,216.38x = 364,520 × 130,619.90
  4. Step 4: Simplify right side
    243,216.38x = 47,613,565,948
  5. Step 5: Solve for x
    x = 47,613,565,948/243,216.38
  6. Step 6: Final answer
    x = 195,766.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.