Home / 371,874.16-513,166.62-210,731.20

Finding the Fourth Proportional to 371,874.16, 513,166.62 and 210,731.20

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Solution

The fourth proportional to 371,874.16, 513,166.62 and 210,731.20 is: 290,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,874.16 : 513,166.62 = 210,731.20 : x
  2. Step 2: Convert to fraction form
    371,874.16/513,166.62 = 210,731.20/x
  3. Step 3: Cross multiply
    371,874.16x = 513,166.62 × 210,731.20
  4. Step 4: Simplify right side
    371,874.16x = 108,140,217,632.54
  5. Step 5: Solve for x
    x = 108,140,217,632.54/371,874.16
  6. Step 6: Final answer
    x = 290,797.88

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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.