Home / 227,211.60-340,817.40-138,638.10

Finding the Fourth Proportional to 227,211.60, 340,817.40 and 138,638.10

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Solution

The fourth proportional to 227,211.60, 340,817.40 and 138,638.10 is: 207,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,211.60 : 340,817.40 = 138,638.10 : x
  2. Step 2: Convert to fraction form
    227,211.60/340,817.40 = 138,638.10/x
  3. Step 3: Cross multiply
    227,211.60x = 340,817.40 × 138,638.10
  4. Step 4: Simplify right side
    227,211.60x = 47,250,276,782.94
  5. Step 5: Solve for x
    x = 47,250,276,782.94/227,211.60
  6. Step 6: Final answer
    x = 207,957.15

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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.