Home / 228,538.80-315,401.04-131,758.38

Finding the Fourth Proportional to 228,538.80, 315,401.04 and 131,758.38

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Solution

The fourth proportional to 228,538.80, 315,401.04 and 131,758.38 is: 181,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,538.80 : 315,401.04 = 131,758.38 : x
  2. Step 2: Convert to fraction form
    228,538.80/315,401.04 = 131,758.38/x
  3. Step 3: Cross multiply
    228,538.80x = 315,401.04 × 131,758.38
  4. Step 4: Simplify right side
    228,538.80x = 41,556,730,080.72
  5. Step 5: Solve for x
    x = 41,556,730,080.72/228,538.80
  6. Step 6: Final answer
    x = 181,836.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.