Home / 221,624.80-305,868.48-124,831.84

Finding the Fourth Proportional to 221,624.80, 305,868.48 and 124,831.84

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Solution

The fourth proportional to 221,624.80, 305,868.48 and 124,831.84 is: 172,282.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,624.80 : 305,868.48 = 124,831.84 : x
  2. Step 2: Convert to fraction form
    221,624.80/305,868.48 = 124,831.84/x
  3. Step 3: Cross multiply
    221,624.80x = 305,868.48 × 124,831.84
  4. Step 4: Simplify right side
    221,624.80x = 38,182,125,156.40
  5. Step 5: Solve for x
    x = 38,182,125,156.40/221,624.80
  6. Step 6: Final answer
    x = 172,282.73

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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.