Home / 371,766.90-513,039.60-210,651.78

Finding the Fourth Proportional to 371,766.90, 513,039.60 and 210,651.78

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Solution

The fourth proportional to 371,766.90, 513,039.60 and 210,651.78 is: 290,700.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,766.90 : 513,039.60 = 210,651.78 : x
  2. Step 2: Convert to fraction form
    371,766.90/513,039.60 = 210,651.78/x
  3. Step 3: Cross multiply
    371,766.90x = 513,039.60 × 210,651.78
  4. Step 4: Simplify right side
    371,766.90x = 108,072,704,950.49
  5. Step 5: Solve for x
    x = 108,072,704,950.49/371,766.90
  6. Step 6: Final answer
    x = 290,700.18

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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.