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Finding the Fourth Proportional to 372,464, 513,910.68 and 219,508.28

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Solution

The fourth proportional to 372,464, 513,910.68 and 219,508.28 is: 302,868.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,464 : 513,910.68 = 219,508.28 : x
  2. Step 2: Convert to fraction form
    372,464/513,910.68 = 219,508.28/x
  3. Step 3: Cross multiply
    372,464x = 513,910.68 × 219,508.28
  4. Step 4: Simplify right side
    372,464x = 112,807,649,440.43
  5. Step 5: Solve for x
    x = 112,807,649,440.43/372,464
  6. Step 6: Final answer
    x = 302,868.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.