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Finding the Fourth Proportional to 261,551.78, 359,808.86 and 229,140.44

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Solution

The fourth proportional to 261,551.78, 359,808.86 and 229,140.44 is: 315,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,551.78 : 359,808.86 = 229,140.44 : x
  2. Step 2: Convert to fraction form
    261,551.78/359,808.86 = 229,140.44/x
  3. Step 3: Cross multiply
    261,551.78x = 359,808.86 × 229,140.44
  4. Step 4: Simplify right side
    261,551.78x = 82,446,760,496.30
  5. Step 5: Solve for x
    x = 82,446,760,496.30/261,551.78
  6. Step 6: Final answer
    x = 315,221.56

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1.5x scale

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.