Home / 256,718.20-385,066.58-67,174.36

Finding the Fourth Proportional to 256,718.20, 385,066.58 and 67,174.36

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Solution

The fourth proportional to 256,718.20, 385,066.58 and 67,174.36 is: 100,758.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,718.20 : 385,066.58 = 67,174.36 : x
  2. Step 2: Convert to fraction form
    256,718.20/385,066.58 = 67,174.36/x
  3. Step 3: Cross multiply
    256,718.20x = 385,066.58 × 67,174.36
  4. Step 4: Simplify right side
    256,718.20x = 25,866,601,214.35
  5. Step 5: Solve for x
    x = 25,866,601,214.35/256,718.20
  6. Step 6: Final answer
    x = 100,758.74

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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.