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Finding the Fourth Proportional to 272,030.60, 408,045.30 and 72,351.02

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Solution

The fourth proportional to 272,030.60, 408,045.30 and 72,351.02 is: 108,526.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,030.60 : 408,045.30 = 72,351.02 : x
  2. Step 2: Convert to fraction form
    272,030.60/408,045.30 = 72,351.02/x
  3. Step 3: Cross multiply
    272,030.60x = 408,045.30 × 72,351.02
  4. Step 4: Simplify right side
    272,030.60x = 29,522,493,661.21
  5. Step 5: Solve for x
    x = 29,522,493,661.21/272,030.60
  6. Step 6: Final answer
    x = 108,526.37

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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.