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Finding the Fourth Proportional to 270,377.17, 405,530.49 and 70,712.95

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Solution

The fourth proportional to 270,377.17, 405,530.49 and 70,712.95 is: 106,060.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,377.17 : 405,530.49 = 70,712.95 : x
  2. Step 2: Convert to fraction form
    270,377.17/405,530.49 = 70,712.95/x
  3. Step 3: Cross multiply
    270,377.17x = 405,530.49 × 70,712.95
  4. Step 4: Simplify right side
    270,377.17x = 28,676,257,262.85
  5. Step 5: Solve for x
    x = 28,676,257,262.85/270,377.17
  6. Step 6: Final answer
    x = 106,060.20

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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.