Home / 254,855.12-351,709.09-140,142.49

Finding the Fourth Proportional to 254,855.12, 351,709.09 and 140,142.49

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Solution

The fourth proportional to 254,855.12, 351,709.09 and 140,142.49 is: 193,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,855.12 : 351,709.09 = 140,142.49 : x
  2. Step 2: Convert to fraction form
    254,855.12/351,709.09 = 140,142.49/x
  3. Step 3: Cross multiply
    254,855.12x = 351,709.09 × 140,142.49
  4. Step 4: Simplify right side
    254,855.12x = 49,289,386,398.61
  5. Step 5: Solve for x
    x = 49,289,386,398.61/254,855.12
  6. Step 6: Final answer
    x = 193,401.60

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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.