Home / 386,882.40-580,256.76-102,574.92

Finding the Fourth Proportional to 386,882.40, 580,256.76 and 102,574.92

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Solution

The fourth proportional to 386,882.40, 580,256.76 and 102,574.92 is: 153,844.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,882.40 : 580,256.76 = 102,574.92 : x
  2. Step 2: Convert to fraction form
    386,882.40/580,256.76 = 102,574.92/x
  3. Step 3: Cross multiply
    386,882.40x = 580,256.76 × 102,574.92
  4. Step 4: Simplify right side
    386,882.40x = 59,519,790,736.46
  5. Step 5: Solve for x
    x = 59,519,790,736.46/386,882.40
  6. Step 6: Final answer
    x = 153,844.66

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1.5x scale

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.