Home / 220,489.09-304,317.20-124,996.16

Finding the Fourth Proportional to 220,489.09, 304,317.20 and 124,996.16

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Solution

The fourth proportional to 220,489.09, 304,317.20 and 124,996.16 is: 172,518.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,489.09 : 304,317.20 = 124,996.16 : x
  2. Step 2: Convert to fraction form
    220,489.09/304,317.20 = 124,996.16/x
  3. Step 3: Cross multiply
    220,489.09x = 304,317.20 × 124,996.16
  4. Step 4: Simplify right side
    220,489.09x = 38,038,480,796.97
  5. Step 5: Solve for x
    x = 38,038,480,796.97/220,489.09
  6. Step 6: Final answer
    x = 172,518.66

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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.