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Finding the Fourth Proportional to 272,278.67, 408,437.51 and 72,598.01

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Solution

The fourth proportional to 272,278.67, 408,437.51 and 72,598.01 is: 108,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,278.67 : 408,437.51 = 72,598.01 : x
  2. Step 2: Convert to fraction form
    272,278.67/408,437.51 = 72,598.01/x
  3. Step 3: Cross multiply
    272,278.67x = 408,437.51 × 72,598.01
  4. Step 4: Simplify right side
    272,278.67x = 29,651,748,030.18
  5. Step 5: Solve for x
    x = 29,651,748,030.18/272,278.67
  6. Step 6: Final answer
    x = 108,902.21

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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.