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Finding the Fourth Proportional to 225,350.40, 310,987.22 and 123,374.15

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Solution

The fourth proportional to 225,350.40, 310,987.22 and 123,374.15 is: 170,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,350.40 : 310,987.22 = 123,374.15 : x
  2. Step 2: Convert to fraction form
    225,350.40/310,987.22 = 123,374.15/x
  3. Step 3: Cross multiply
    225,350.40x = 310,987.22 × 123,374.15
  4. Step 4: Simplify right side
    225,350.40x = 38,367,783,928.36
  5. Step 5: Solve for x
    x = 38,367,783,928.36/225,350.40
  6. Step 6: Final answer
    x = 170,258.34

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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.