Home / 208,877.40-313,316.10-186,132.60

Finding the Fourth Proportional to 208,877.40, 313,316.10 and 186,132.60

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Solution

The fourth proportional to 208,877.40, 313,316.10 and 186,132.60 is: 279,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,877.40 : 313,316.10 = 186,132.60 : x
  2. Step 2: Convert to fraction form
    208,877.40/313,316.10 = 186,132.60/x
  3. Step 3: Cross multiply
    208,877.40x = 313,316.10 × 186,132.60
  4. Step 4: Simplify right side
    208,877.40x = 58,318,340,314.86
  5. Step 5: Solve for x
    x = 58,318,340,314.86/208,877.40
  6. Step 6: Final answer
    x = 279,198.90

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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.