Home / 312,777.57-469,166.40-76,120.25

Finding the Fourth Proportional to 312,777.57, 469,166.40 and 76,120.25

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Solution

The fourth proportional to 312,777.57, 469,166.40 and 76,120.25 is: 114,180.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,777.57 : 469,166.40 = 76,120.25 : x
  2. Step 2: Convert to fraction form
    312,777.57/469,166.40 = 76,120.25/x
  3. Step 3: Cross multiply
    312,777.57x = 469,166.40 × 76,120.25
  4. Step 4: Simplify right side
    312,777.57x = 35,713,060,933.17
  5. Step 5: Solve for x
    x = 35,713,060,933.17/312,777.57
  6. Step 6: Final answer
    x = 114,180.38

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1.5x scale

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.