Home / 310,721.70-428,731.65-181,635.24

Finding the Fourth Proportional to 310,721.70, 428,731.65 and 181,635.24

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Solution

The fourth proportional to 310,721.70, 428,731.65 and 181,635.24 is: 250,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,721.70 : 428,731.65 = 181,635.24 : x
  2. Step 2: Convert to fraction form
    310,721.70/428,731.65 = 181,635.24/x
  3. Step 3: Cross multiply
    310,721.70x = 428,731.65 × 181,635.24
  4. Step 4: Simplify right side
    310,721.70x = 77,872,776,143.35
  5. Step 5: Solve for x
    x = 77,872,776,143.35/310,721.70
  6. Step 6: Final answer
    x = 250,619.05

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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.