Home / 261,387.44-391,449.64-148,726.36

Finding the Fourth Proportional to 261,387.44, 391,449.64 and 148,726.36

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Solution

The fourth proportional to 261,387.44, 391,449.64 and 148,726.36 is: 222,730.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,387.44 : 391,449.64 = 148,726.36 : x
  2. Step 2: Convert to fraction form
    261,387.44/391,449.64 = 148,726.36/x
  3. Step 3: Cross multiply
    261,387.44x = 391,449.64 × 148,726.36
  4. Step 4: Simplify right side
    261,387.44x = 58,218,880,080.51
  5. Step 5: Solve for x
    x = 58,218,880,080.51/261,387.44
  6. Step 6: Final answer
    x = 222,730.21

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1.5x scale

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.