Home / 426,143.42-639,500.49-176,825.66

Finding the Fourth Proportional to 426,143.42, 639,500.49 and 176,825.66

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Solution

The fourth proportional to 426,143.42, 639,500.49 and 176,825.66 is: 265,356.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,143.42 : 639,500.49 = 176,825.66 : x
  2. Step 2: Convert to fraction form
    426,143.42/639,500.49 = 176,825.66/x
  3. Step 3: Cross multiply
    426,143.42x = 639,500.49 × 176,825.66
  4. Step 4: Simplify right side
    426,143.42x = 113,080,096,214.57
  5. Step 5: Solve for x
    x = 113,080,096,214.57/426,143.42
  6. Step 6: Final answer
    x = 265,356.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.