Home / 220,643.38-304,479.30-125,168.68

Finding the Fourth Proportional to 220,643.38, 304,479.30 and 125,168.68

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Solution

The fourth proportional to 220,643.38, 304,479.30 and 125,168.68 is: 172,727.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,643.38 : 304,479.30 = 125,168.68 : x
  2. Step 2: Convert to fraction form
    220,643.38/304,479.30 = 125,168.68/x
  3. Step 3: Cross multiply
    220,643.38x = 304,479.30 × 125,168.68
  4. Step 4: Simplify right side
    220,643.38x = 38,111,272,068.32
  5. Step 5: Solve for x
    x = 38,111,272,068.32/220,643.38
  6. Step 6: Final answer
    x = 172,727.92

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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.