Home / 347,918.10-521,877.15-259,344.60

Finding the Fourth Proportional to 347,918.10, 521,877.15 and 259,344.60

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Solution

The fourth proportional to 347,918.10, 521,877.15 and 259,344.60 is: 389,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,918.10 : 521,877.15 = 259,344.60 : x
  2. Step 2: Convert to fraction form
    347,918.10/521,877.15 = 259,344.60/x
  3. Step 3: Cross multiply
    347,918.10x = 521,877.15 × 259,344.60
  4. Step 4: Simplify right side
    347,918.10x = 135,346,020,715.89
  5. Step 5: Solve for x
    x = 135,346,020,715.89/347,918.10
  6. Step 6: Final answer
    x = 389,016.90

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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.