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Finding the Fourth Proportional to 302,600.90, 453,901.35 and 279,791.30

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Solution

The fourth proportional to 302,600.90, 453,901.35 and 279,791.30 is: 419,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,600.90 : 453,901.35 = 279,791.30 : x
  2. Step 2: Convert to fraction form
    302,600.90/453,901.35 = 279,791.30/x
  3. Step 3: Cross multiply
    302,600.90x = 453,901.35 × 279,791.30
  4. Step 4: Simplify right side
    302,600.90x = 126,997,648,788.26
  5. Step 5: Solve for x
    x = 126,997,648,788.26/302,600.90
  6. Step 6: Final answer
    x = 419,686.95

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1.5x scale

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.