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Finding the Fourth Proportional to 354,805.28, 532,077.15 and 279,051.95

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Solution

The fourth proportional to 354,805.28, 532,077.15 and 279,051.95 is: 418,475.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,805.28 : 532,077.15 = 279,051.95 : x
  2. Step 2: Convert to fraction form
    354,805.28/532,077.15 = 279,051.95/x
  3. Step 3: Cross multiply
    354,805.28x = 532,077.15 × 279,051.95
  4. Step 4: Simplify right side
    354,805.28x = 148,477,168,634.58
  5. Step 5: Solve for x
    x = 148,477,168,634.58/354,805.28
  6. Step 6: Final answer
    x = 418,475.08

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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.