Home / 254,074.08-381,127.04-85,580.56

Finding the Fourth Proportional to 254,074.08, 381,127.04 and 85,580.56

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Solution

The fourth proportional to 254,074.08, 381,127.04 and 85,580.56 is: 128,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,074.08 : 381,127.04 = 85,580.56 : x
  2. Step 2: Convert to fraction form
    254,074.08/381,127.04 = 85,580.56/x
  3. Step 3: Cross multiply
    254,074.08x = 381,127.04 × 85,580.56
  4. Step 4: Simplify right side
    254,074.08x = 32,617,065,514.34
  5. Step 5: Solve for x
    x = 32,617,065,514.34/254,074.08
  6. Step 6: Final answer
    x = 128,376.20

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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.