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Finding the Fourth Proportional to 448,092.30, 672,138.45 and 315,122.70

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Solution

The fourth proportional to 448,092.30, 672,138.45 and 315,122.70 is: 472,684.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,092.30 : 672,138.45 = 315,122.70 : x
  2. Step 2: Convert to fraction form
    448,092.30/672,138.45 = 315,122.70/x
  3. Step 3: Cross multiply
    448,092.30x = 672,138.45 × 315,122.70
  4. Step 4: Simplify right side
    448,092.30x = 211,806,083,137.82
  5. Step 5: Solve for x
    x = 211,806,083,137.82/448,092.30
  6. Step 6: Final answer
    x = 472,684.05

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Similar ratio
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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.