Home / 372,428.92-513,963.53-211,290.76

Finding the Fourth Proportional to 372,428.92, 513,963.53 and 211,290.76

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Solution

The fourth proportional to 372,428.92, 513,963.53 and 211,290.76 is: 291,587.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,428.92 : 513,963.53 = 211,290.76 : x
  2. Step 2: Convert to fraction form
    372,428.92/513,963.53 = 211,290.76/x
  3. Step 3: Cross multiply
    372,428.92x = 513,963.53 × 211,290.76
  4. Step 4: Simplify right side
    372,428.92x = 108,595,744,865.98
  5. Step 5: Solve for x
    x = 108,595,744,865.98/372,428.92
  6. Step 6: Final answer
    x = 291,587.84

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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.