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Finding the Fourth Proportional to 302,602.90, 453,904.35 and 279,793.30

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Solution

The fourth proportional to 302,602.90, 453,904.35 and 279,793.30 is: 419,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,602.90 : 453,904.35 = 279,793.30 : x
  2. Step 2: Convert to fraction form
    302,602.90/453,904.35 = 279,793.30/x
  3. Step 3: Cross multiply
    302,602.90x = 453,904.35 × 279,793.30
  4. Step 4: Simplify right side
    302,602.90x = 126,999,395,970.86
  5. Step 5: Solve for x
    x = 126,999,395,970.86/302,602.90
  6. Step 6: Final answer
    x = 419,689.95

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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.