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Finding the Fourth Proportional to 255,251.44, 382,855.29 and 155,385.73

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Solution

The fourth proportional to 255,251.44, 382,855.29 and 155,385.73 is: 233,065.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,251.44 : 382,855.29 = 155,385.73 : x
  2. Step 2: Convert to fraction form
    255,251.44/382,855.29 = 155,385.73/x
  3. Step 3: Cross multiply
    255,251.44x = 382,855.29 × 155,385.73
  4. Step 4: Simplify right side
    255,251.44x = 59,490,248,721.01
  5. Step 5: Solve for x
    x = 59,490,248,721.01/255,251.44
  6. Step 6: Final answer
    x = 233,065.28

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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.