Home / 254,453.10-381,679.65-215,087.10

Finding the Fourth Proportional to 254,453.10, 381,679.65 and 215,087.10

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Solution

The fourth proportional to 254,453.10, 381,679.65 and 215,087.10 is: 322,630.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,453.10 : 381,679.65 = 215,087.10 : x
  2. Step 2: Convert to fraction form
    254,453.10/381,679.65 = 215,087.10/x
  3. Step 3: Cross multiply
    254,453.10x = 381,679.65 × 215,087.10
  4. Step 4: Simplify right side
    254,453.10x = 82,094,369,047.52
  5. Step 5: Solve for x
    x = 82,094,369,047.52/254,453.10
  6. Step 6: Final answer
    x = 322,630.65

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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.