Home / 259,637.10-389,455.65-247,389.90

Finding the Fourth Proportional to 259,637.10, 389,455.65 and 247,389.90

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Solution

The fourth proportional to 259,637.10, 389,455.65 and 247,389.90 is: 371,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,637.10 : 389,455.65 = 247,389.90 : x
  2. Step 2: Convert to fraction form
    259,637.10/389,455.65 = 247,389.90/x
  3. Step 3: Cross multiply
    259,637.10x = 389,455.65 × 247,389.90
  4. Step 4: Simplify right side
    259,637.10x = 96,347,394,307.94
  5. Step 5: Solve for x
    x = 96,347,394,307.94/259,637.10
  6. Step 6: Final answer
    x = 371,084.85

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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.