Home / 257,211.36-385,854.62-123,982.06

Finding the Fourth Proportional to 257,211.36, 385,854.62 and 123,982.06

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Solution

The fourth proportional to 257,211.36, 385,854.62 and 123,982.06 is: 185,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,211.36 : 385,854.62 = 123,982.06 : x
  2. Step 2: Convert to fraction form
    257,211.36/385,854.62 = 123,982.06/x
  3. Step 3: Cross multiply
    257,211.36x = 385,854.62 × 123,982.06
  4. Step 4: Simplify right side
    257,211.36x = 47,839,050,648.12
  5. Step 5: Solve for x
    x = 47,839,050,648.12/257,211.36
  6. Step 6: Final answer
    x = 185,991.20

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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.