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Finding the Fourth Proportional to 357,610.73, 493,382.43 and 202,540.86

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Solution

The fourth proportional to 357,610.73, 493,382.43 and 202,540.86 is: 279,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,610.73 : 493,382.43 = 202,540.86 : x
  2. Step 2: Convert to fraction form
    357,610.73/493,382.43 = 202,540.86/x
  3. Step 3: Cross multiply
    357,610.73x = 493,382.43 × 202,540.86
  4. Step 4: Simplify right side
    357,610.73x = 99,930,101,681.09
  5. Step 5: Solve for x
    x = 99,930,101,681.09/357,610.73
  6. Step 6: Final answer
    x = 279,438.21

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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.