Home / 372,250.18-513,663.50-219,278.40

Finding the Fourth Proportional to 372,250.18, 513,663.50 and 219,278.40

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Solution

The fourth proportional to 372,250.18, 513,663.50 and 219,278.40 is: 302,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,250.18 : 513,663.50 = 219,278.40 : x
  2. Step 2: Convert to fraction form
    372,250.18/513,663.50 = 219,278.40/x
  3. Step 3: Cross multiply
    372,250.18x = 513,663.50 × 219,278.40
  4. Step 4: Simplify right side
    372,250.18x = 112,635,310,418.40
  5. Step 5: Solve for x
    x = 112,635,310,418.40/372,250.18
  6. Step 6: Final answer
    x = 302,579.60

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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.