Home / 371,854.38-513,139.41-210,711.36

Finding the Fourth Proportional to 371,854.38, 513,139.41 and 210,711.36

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Solution

The fourth proportional to 371,854.38, 513,139.41 and 210,711.36 is: 290,770.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,854.38 : 513,139.41 = 210,711.36 : x
  2. Step 2: Convert to fraction form
    371,854.38/513,139.41 = 210,711.36/x
  3. Step 3: Cross multiply
    371,854.38x = 513,139.41 × 210,711.36
  4. Step 4: Simplify right side
    371,854.38x = 108,124,302,950.70
  5. Step 5: Solve for x
    x = 108,124,302,950.70/371,854.38
  6. Step 6: Final answer
    x = 290,770.55

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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.