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Finding the Fourth Proportional to 403,751.28, 605,720.61 and 137,514.10

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Solution

The fourth proportional to 403,751.28, 605,720.61 and 137,514.10 is: 206,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,751.28 : 605,720.61 = 137,514.10 : x
  2. Step 2: Convert to fraction form
    403,751.28/605,720.61 = 137,514.10/x
  3. Step 3: Cross multiply
    403,751.28x = 605,720.61 × 137,514.10
  4. Step 4: Simplify right side
    403,751.28x = 83,295,123,848.03
  5. Step 5: Solve for x
    x = 83,295,123,848.03/403,751.28
  6. Step 6: Final answer
    x = 206,303.06

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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.