Home / 309,126.68-426,600.24-173,159.56

Finding the Fourth Proportional to 309,126.68, 426,600.24 and 173,159.56

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Solution

The fourth proportional to 309,126.68, 426,600.24 and 173,159.56 is: 238,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,126.68 : 426,600.24 = 173,159.56 : x
  2. Step 2: Convert to fraction form
    309,126.68/426,600.24 = 173,159.56/x
  3. Step 3: Cross multiply
    309,126.68x = 426,600.24 × 173,159.56
  4. Step 4: Simplify right side
    309,126.68x = 73,869,909,854.29
  5. Step 5: Solve for x
    x = 73,869,909,854.29/309,126.68
  6. Step 6: Final answer
    x = 238,963.23

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1.5x scale

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.