Home / 243,743.40-365,615.10-218,082.60

Finding the Fourth Proportional to 243,743.40, 365,615.10 and 218,082.60

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Solution

The fourth proportional to 243,743.40, 365,615.10 and 218,082.60 is: 327,123.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,743.40 : 365,615.10 = 218,082.60 : x
  2. Step 2: Convert to fraction form
    243,743.40/365,615.10 = 218,082.60/x
  3. Step 3: Cross multiply
    243,743.40x = 365,615.10 × 218,082.60
  4. Step 4: Simplify right side
    243,743.40x = 79,734,291,607.26
  5. Step 5: Solve for x
    x = 79,734,291,607.26/243,743.40
  6. Step 6: Final answer
    x = 327,123.90

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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.