Home / 220,838.40-304,758.45-125,346.69

Finding the Fourth Proportional to 220,838.40, 304,758.45 and 125,346.69

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Solution

The fourth proportional to 220,838.40, 304,758.45 and 125,346.69 is: 172,979.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,838.40 : 304,758.45 = 125,346.69 : x
  2. Step 2: Convert to fraction form
    220,838.40/304,758.45 = 125,346.69/x
  3. Step 3: Cross multiply
    220,838.40x = 304,758.45 × 125,346.69
  4. Step 4: Simplify right side
    220,838.40x = 38,200,462,957.03
  5. Step 5: Solve for x
    x = 38,200,462,957.03/220,838.40
  6. Step 6: Final answer
    x = 172,979.26

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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.