Home / 220,983.61-304,943.03-130,318.79

Finding the Fourth Proportional to 220,983.61, 304,943.03 and 130,318.79

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Solution

The fourth proportional to 220,983.61, 304,943.03 and 130,318.79 is: 179,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,983.61 : 304,943.03 = 130,318.79 : x
  2. Step 2: Convert to fraction form
    220,983.61/304,943.03 = 130,318.79/x
  3. Step 3: Cross multiply
    220,983.61x = 304,943.03 × 130,318.79
  4. Step 4: Simplify right side
    220,983.61x = 39,739,806,716.22
  5. Step 5: Solve for x
    x = 39,739,806,716.22/220,983.61
  6. Step 6: Final answer
    x = 179,831.47

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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.