Home / 225,028.19-310,539.02-128,229.29

Finding the Fourth Proportional to 225,028.19, 310,539.02 and 128,229.29

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Solution

The fourth proportional to 225,028.19, 310,539.02 and 128,229.29 is: 176,956.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,028.19 : 310,539.02 = 128,229.29 : x
  2. Step 2: Convert to fraction form
    225,028.19/310,539.02 = 128,229.29/x
  3. Step 3: Cross multiply
    225,028.19x = 310,539.02 × 128,229.29
  4. Step 4: Simplify right side
    225,028.19x = 39,820,198,769.36
  5. Step 5: Solve for x
    x = 39,820,198,769.36/225,028.19
  6. Step 6: Final answer
    x = 176,956.49

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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.