Home / 330,034.69-455,432.13-202,685.68

Finding the Fourth Proportional to 330,034.69, 455,432.13 and 202,685.68

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Solution

The fourth proportional to 330,034.69, 455,432.13 and 202,685.68 is: 279,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,034.69 : 455,432.13 = 202,685.68 : x
  2. Step 2: Convert to fraction form
    330,034.69/455,432.13 = 202,685.68/x
  3. Step 3: Cross multiply
    330,034.69x = 455,432.13 × 202,685.68
  4. Step 4: Simplify right side
    330,034.69x = 92,309,572,243.04
  5. Step 5: Solve for x
    x = 92,309,572,243.04/330,034.69
  6. Step 6: Final answer
    x = 279,696.57

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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.