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Finding the Fourth Proportional to 147,344.40, 221,016.60 and 53,886.60

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Solution

The fourth proportional to 147,344.40, 221,016.60 and 53,886.60 is: 80,829.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,344.40 : 221,016.60 = 53,886.60 : x
  2. Step 2: Convert to fraction form
    147,344.40/221,016.60 = 53,886.60/x
  3. Step 3: Cross multiply
    147,344.40x = 221,016.60 × 53,886.60
  4. Step 4: Simplify right side
    147,344.40x = 11,909,833,117.56
  5. Step 5: Solve for x
    x = 11,909,833,117.56/147,344.40
  6. Step 6: Final answer
    x = 80,829.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.