Home / 248,470.20-372,705.30-90,703.80

Finding the Fourth Proportional to 248,470.20, 372,705.30 and 90,703.80

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Solution

The fourth proportional to 248,470.20, 372,705.30 and 90,703.80 is: 136,055.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,470.20 : 372,705.30 = 90,703.80 : x
  2. Step 2: Convert to fraction form
    248,470.20/372,705.30 = 90,703.80/x
  3. Step 3: Cross multiply
    248,470.20x = 372,705.30 × 90,703.80
  4. Step 4: Simplify right side
    248,470.20x = 33,805,786,990.14
  5. Step 5: Solve for x
    x = 33,805,786,990.14/248,470.20
  6. Step 6: Final answer
    x = 136,055.70

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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.