Home / 318,318.39-477,508.77-115,969.50

Finding the Fourth Proportional to 318,318.39, 477,508.77 and 115,969.50

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Solution

The fourth proportional to 318,318.39, 477,508.77 and 115,969.50 is: 173,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,318.39 : 477,508.77 = 115,969.50 : x
  2. Step 2: Convert to fraction form
    318,318.39/477,508.77 = 115,969.50/x
  3. Step 3: Cross multiply
    318,318.39x = 477,508.77 × 115,969.50
  4. Step 4: Simplify right side
    318,318.39x = 55,376,453,302.52
  5. Step 5: Solve for x
    x = 55,376,453,302.52/318,318.39
  6. Step 6: Final answer
    x = 173,965.61

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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.