Home / 225,022.68-310,560.48-128,261.30

Finding the Fourth Proportional to 225,022.68, 310,560.48 and 128,261.30

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Solution

The fourth proportional to 225,022.68, 310,560.48 and 128,261.30 is: 177,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,022.68 : 310,560.48 = 128,261.30 : x
  2. Step 2: Convert to fraction form
    225,022.68/310,560.48 = 128,261.30/x
  3. Step 3: Cross multiply
    225,022.68x = 310,560.48 × 128,261.30
  4. Step 4: Simplify right side
    225,022.68x = 39,832,889,340.62
  5. Step 5: Solve for x
    x = 39,832,889,340.62/225,022.68
  6. Step 6: Final answer
    x = 177,017.22

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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.