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Finding the Fourth Proportional to 438,515.52, 605,107.68 and 247,492.02

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Solution

The fourth proportional to 438,515.52, 605,107.68 and 247,492.02 is: 341,514.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,515.52 : 605,107.68 = 247,492.02 : x
  2. Step 2: Convert to fraction form
    438,515.52/605,107.68 = 247,492.02/x
  3. Step 3: Cross multiply
    438,515.52x = 605,107.68 × 247,492.02
  4. Step 4: Simplify right side
    438,515.52x = 149,759,322,040.71
  5. Step 5: Solve for x
    x = 149,759,322,040.71/438,515.52
  6. Step 6: Final answer
    x = 341,514.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.