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Finding the Fourth Proportional to 161,452.80, 241,718.40 and 143,020.80

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Solution

The fourth proportional to 161,452.80, 241,718.40 and 143,020.80 is: 214,123.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,452.80 : 241,718.40 = 143,020.80 : x
  2. Step 2: Convert to fraction form
    161,452.80/241,718.40 = 143,020.80/x
  3. Step 3: Cross multiply
    161,452.80x = 241,718.40 × 143,020.80
  4. Step 4: Simplify right side
    161,452.80x = 34,570,758,942.72
  5. Step 5: Solve for x
    x = 34,570,758,942.72/161,452.80
  6. Step 6: Final answer
    x = 214,123.01

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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.