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Finding the Fourth Proportional to 254,529.88, 381,799.62 and 77,036.20

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Solution

The fourth proportional to 254,529.88, 381,799.62 and 77,036.20 is: 115,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,529.88 : 381,799.62 = 77,036.20 : x
  2. Step 2: Convert to fraction form
    254,529.88/381,799.62 = 77,036.20/x
  3. Step 3: Cross multiply
    254,529.88x = 381,799.62 × 77,036.20
  4. Step 4: Simplify right side
    254,529.88x = 29,412,391,886.24
  5. Step 5: Solve for x
    x = 29,412,391,886.24/254,529.88
  6. Step 6: Final answer
    x = 115,555.75

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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.