Home / 371,870.76-513,178.82-202,106.10

Finding the Fourth Proportional to 371,870.76, 513,178.82 and 202,106.10

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Solution

The fourth proportional to 371,870.76, 513,178.82 and 202,106.10 is: 278,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,870.76 : 513,178.82 = 202,106.10 : x
  2. Step 2: Convert to fraction form
    371,870.76/513,178.82 = 202,106.10/x
  3. Step 3: Cross multiply
    371,870.76x = 513,178.82 × 202,106.10
  4. Step 4: Simplify right side
    371,870.76x = 103,716,569,912.80
  5. Step 5: Solve for x
    x = 103,716,569,912.80/371,870.76
  6. Step 6: Final answer
    x = 278,904.88

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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.