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Finding the Fourth Proportional to 245,805.88, 368,851.92 and 103,642.24

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Solution

The fourth proportional to 245,805.88, 368,851.92 and 103,642.24 is: 155,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,805.88 : 368,851.92 = 103,642.24 : x
  2. Step 2: Convert to fraction form
    245,805.88/368,851.92 = 103,642.24/x
  3. Step 3: Cross multiply
    245,805.88x = 368,851.92 × 103,642.24
  4. Step 4: Simplify right side
    245,805.88x = 38,228,639,217.10
  5. Step 5: Solve for x
    x = 38,228,639,217.10/245,805.88
  6. Step 6: Final answer
    x = 155,523.70

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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.