Home / 262,938.30-394,666.65-129,968.70

Finding the Fourth Proportional to 262,938.30, 394,666.65 and 129,968.70

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Solution

The fourth proportional to 262,938.30, 394,666.65 and 129,968.70 is: 195,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,938.30 : 394,666.65 = 129,968.70 : x
  2. Step 2: Convert to fraction form
    262,938.30/394,666.65 = 129,968.70/x
  3. Step 3: Cross multiply
    262,938.30x = 394,666.65 × 129,968.70
  4. Step 4: Simplify right side
    262,938.30x = 51,294,311,433.86
  5. Step 5: Solve for x
    x = 51,294,311,433.86/262,938.30
  6. Step 6: Final answer
    x = 195,081.17

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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.