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Finding the Fourth Proportional to 272,648.60, 409,209.18 and 272,018.14

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Solution

The fourth proportional to 272,648.60, 409,209.18 and 272,018.14 is: 408,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,648.60 : 409,209.18 = 272,018.14 : x
  2. Step 2: Convert to fraction form
    272,648.60/409,209.18 = 272,018.14/x
  3. Step 3: Cross multiply
    272,648.60x = 409,209.18 × 272,018.14
  4. Step 4: Simplify right side
    272,648.60x = 111,312,320,014.53
  5. Step 5: Solve for x
    x = 111,312,320,014.53/272,648.60
  6. Step 6: Final answer
    x = 408,262.94

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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.