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Finding the Fourth Proportional to 272,422.14, 408,750.72 and 103,993.03

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Solution

The fourth proportional to 272,422.14, 408,750.72 and 103,993.03 is: 156,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,422.14 : 408,750.72 = 103,993.03 : x
  2. Step 2: Convert to fraction form
    272,422.14/408,750.72 = 103,993.03/x
  3. Step 3: Cross multiply
    272,422.14x = 408,750.72 × 103,993.03
  4. Step 4: Simplify right side
    272,422.14x = 42,507,225,887.48
  5. Step 5: Solve for x
    x = 42,507,225,887.48/272,422.14
  6. Step 6: Final answer
    x = 156,034.40

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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.