Home / 220,923.74-304,864.09-125,428.39

Finding the Fourth Proportional to 220,923.74, 304,864.09 and 125,428.39

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Solution

The fourth proportional to 220,923.74, 304,864.09 and 125,428.39 is: 173,085.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,923.74 : 304,864.09 = 125,428.39 : x
  2. Step 2: Convert to fraction form
    220,923.74/304,864.09 = 125,428.39/x
  3. Step 3: Cross multiply
    220,923.74x = 304,864.09 × 125,428.39
  4. Step 4: Simplify right side
    220,923.74x = 38,238,610,901.78
  5. Step 5: Solve for x
    x = 38,238,610,901.78/220,923.74
  6. Step 6: Final answer
    x = 173,085.11

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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.