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Finding the Fourth Proportional to 254,801.40, 382,278.90 and 136,529.40

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Solution

The fourth proportional to 254,801.40, 382,278.90 and 136,529.40 is: 204,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,801.40 : 382,278.90 = 136,529.40 : x
  2. Step 2: Convert to fraction form
    254,801.40/382,278.90 = 136,529.40/x
  3. Step 3: Cross multiply
    254,801.40x = 382,278.90 × 136,529.40
  4. Step 4: Simplify right side
    254,801.40x = 52,192,308,849.66
  5. Step 5: Solve for x
    x = 52,192,308,849.66/254,801.40
  6. Step 6: Final answer
    x = 204,835.25

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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.