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Finding the Fourth Proportional to 254,672.40, 382,085.40 and 136,400.40

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Solution

The fourth proportional to 254,672.40, 382,085.40 and 136,400.40 is: 204,641.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,672.40 : 382,085.40 = 136,400.40 : x
  2. Step 2: Convert to fraction form
    254,672.40/382,085.40 = 136,400.40/x
  3. Step 3: Cross multiply
    254,672.40x = 382,085.40 × 136,400.40
  4. Step 4: Simplify right side
    254,672.40x = 52,116,601,394.16
  5. Step 5: Solve for x
    x = 52,116,601,394.16/254,672.40
  6. Step 6: Final answer
    x = 204,641.73

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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.