Home / 221,283.48-305,397-125,804.46

Finding the Fourth Proportional to 221,283.48, 305,397 and 125,804.46

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Solution

The fourth proportional to 221,283.48, 305,397 and 125,804.46 is: 173,624.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,283.48 : 305,397 = 125,804.46 : x
  2. Step 2: Convert to fraction form
    221,283.48/305,397 = 125,804.46/x
  3. Step 3: Cross multiply
    221,283.48x = 305,397 × 125,804.46
  4. Step 4: Simplify right side
    221,283.48x = 38,420,304,670.62
  5. Step 5: Solve for x
    x = 38,420,304,670.62/221,283.48
  6. Step 6: Final answer
    x = 173,624.82

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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.