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Finding the Fourth Proportional to 283,615.95, 425,455.08 and 115,111.79

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Solution

The fourth proportional to 283,615.95, 425,455.08 and 115,111.79 is: 172,680.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,615.95 : 425,455.08 = 115,111.79 : x
  2. Step 2: Convert to fraction form
    283,615.95/425,455.08 = 115,111.79/x
  3. Step 3: Cross multiply
    283,615.95x = 425,455.08 × 115,111.79
  4. Step 4: Simplify right side
    283,615.95x = 48,974,895,823.39
  5. Step 5: Solve for x
    x = 48,974,895,823.39/283,615.95
  6. Step 6: Final answer
    x = 172,680.33

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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.