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Finding the Fourth Proportional to 220,449.81, 304,222.65 and 124,938.66

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Solution

The fourth proportional to 220,449.81, 304,222.65 and 124,938.66 is: 172,416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,449.81 : 304,222.65 = 124,938.66 : x
  2. Step 2: Convert to fraction form
    220,449.81/304,222.65 = 124,938.66/x
  3. Step 3: Cross multiply
    220,449.81x = 304,222.65 × 124,938.66
  4. Step 4: Simplify right side
    220,449.81x = 38,009,170,232.65
  5. Step 5: Solve for x
    x = 38,009,170,232.65/220,449.81
  6. Step 6: Final answer
    x = 172,416.43

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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.