Home / 371,743.76-513,008.52-201,979.28

Finding the Fourth Proportional to 371,743.76, 513,008.52 and 201,979.28

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Solution

The fourth proportional to 371,743.76, 513,008.52 and 201,979.28 is: 278,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,743.76 : 513,008.52 = 201,979.28 : x
  2. Step 2: Convert to fraction form
    371,743.76/513,008.52 = 201,979.28/x
  3. Step 3: Cross multiply
    371,743.76x = 513,008.52 × 201,979.28
  4. Step 4: Simplify right side
    371,743.76x = 103,617,091,503.47
  5. Step 5: Solve for x
    x = 103,617,091,503.47/371,743.76
  6. Step 6: Final answer
    x = 278,732.56

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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.