Home / 403,434.08-605,154.36-137,255.12

Finding the Fourth Proportional to 403,434.08, 605,154.36 and 137,255.12

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Solution

The fourth proportional to 403,434.08, 605,154.36 and 137,255.12 is: 205,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,434.08 : 605,154.36 = 137,255.12 : x
  2. Step 2: Convert to fraction form
    403,434.08/605,154.36 = 137,255.12/x
  3. Step 3: Cross multiply
    403,434.08x = 605,154.36 × 137,255.12
  4. Step 4: Simplify right side
    403,434.08x = 83,060,534,300.32
  5. Step 5: Solve for x
    x = 83,060,534,300.32/403,434.08
  6. Step 6: Final answer
    x = 205,883.78

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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.