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Finding the Fourth Proportional to 254,752.30, 382,116.30 and 86,256.10

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Solution

The fourth proportional to 254,752.30, 382,116.30 and 86,256.10 is: 129,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,752.30 : 382,116.30 = 86,256.10 : x
  2. Step 2: Convert to fraction form
    254,752.30/382,116.30 = 86,256.10/x
  3. Step 3: Cross multiply
    254,752.30x = 382,116.30 × 86,256.10
  4. Step 4: Simplify right side
    254,752.30x = 32,959,861,784.43
  5. Step 5: Solve for x
    x = 32,959,861,784.43/254,752.30
  6. Step 6: Final answer
    x = 129,380.04

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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.