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Finding the Fourth Proportional to 238,643.24, 357,741.30 and 80,761.16

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Solution

The fourth proportional to 238,643.24, 357,741.30 and 80,761.16 is: 121,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,643.24 : 357,741.30 = 80,761.16 : x
  2. Step 2: Convert to fraction form
    238,643.24/357,741.30 = 80,761.16/x
  3. Step 3: Cross multiply
    238,643.24x = 357,741.30 × 80,761.16
  4. Step 4: Simplify right side
    238,643.24x = 28,891,602,367.91
  5. Step 5: Solve for x
    x = 28,891,602,367.91/238,643.24
  6. Step 6: Final answer
    x = 121,066.08

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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.