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Finding the Fourth Proportional to 254,673.40, 382,086.90 and 136,401.40

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Solution

The fourth proportional to 254,673.40, 382,086.90 and 136,401.40 is: 204,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,673.40 : 382,086.90 = 136,401.40 : x
  2. Step 2: Convert to fraction form
    254,673.40/382,086.90 = 136,401.40/x
  3. Step 3: Cross multiply
    254,673.40x = 382,086.90 × 136,401.40
  4. Step 4: Simplify right side
    254,673.40x = 52,117,188,081.66
  5. Step 5: Solve for x
    x = 52,117,188,081.66/254,673.40
  6. Step 6: Final answer
    x = 204,643.23

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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.