Home / 310,427.33-428,391.18-181,373.13

Finding the Fourth Proportional to 310,427.33, 428,391.18 and 181,373.13

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Solution

The fourth proportional to 310,427.33, 428,391.18 and 181,373.13 is: 250,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,427.33 : 428,391.18 = 181,373.13 : x
  2. Step 2: Convert to fraction form
    310,427.33/428,391.18 = 181,373.13/x
  3. Step 3: Cross multiply
    310,427.33x = 428,391.18 × 181,373.13
  4. Step 4: Simplify right side
    310,427.33x = 77,698,649,180.99
  5. Step 5: Solve for x
    x = 77,698,649,180.99/310,427.33
  6. Step 6: Final answer
    x = 250,295.78

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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.