Home / 225,221.03-310,805.05-123,246.51

Finding the Fourth Proportional to 225,221.03, 310,805.05 and 123,246.51

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Solution

The fourth proportional to 225,221.03, 310,805.05 and 123,246.51 is: 170,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,221.03 : 310,805.05 = 123,246.51 : x
  2. Step 2: Convert to fraction form
    225,221.03/310,805.05 = 123,246.51/x
  3. Step 3: Cross multiply
    225,221.03x = 310,805.05 × 123,246.51
  4. Step 4: Simplify right side
    225,221.03x = 38,305,637,702.88
  5. Step 5: Solve for x
    x = 38,305,637,702.88/225,221.03
  6. Step 6: Final answer
    x = 170,080.20

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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.