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Finding the Fourth Proportional to 220,883.40, 304,810.72 and 134,986.04

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Solution

The fourth proportional to 220,883.40, 304,810.72 and 134,986.04 is: 186,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,883.40 : 304,810.72 = 134,986.04 : x
  2. Step 2: Convert to fraction form
    220,883.40/304,810.72 = 134,986.04/x
  3. Step 3: Cross multiply
    220,883.40x = 304,810.72 × 134,986.04
  4. Step 4: Simplify right side
    220,883.40x = 41,145,190,180.83
  5. Step 5: Solve for x
    x = 41,145,190,180.83/220,883.40
  6. Step 6: Final answer
    x = 186,275.61

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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.