Home / 343,923.90-515,885.85-107,266.20

Finding the Fourth Proportional to 343,923.90, 515,885.85 and 107,266.20

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Solution

The fourth proportional to 343,923.90, 515,885.85 and 107,266.20 is: 160,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,923.90 : 515,885.85 = 107,266.20 : x
  2. Step 2: Convert to fraction form
    343,923.90/515,885.85 = 107,266.20/x
  3. Step 3: Cross multiply
    343,923.90x = 515,885.85 × 107,266.20
  4. Step 4: Simplify right side
    343,923.90x = 55,337,114,763.27
  5. Step 5: Solve for x
    x = 55,337,114,763.27/343,923.90
  6. Step 6: Final answer
    x = 160,899.30

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Similar ratio
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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.