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Finding the Fourth Proportional to 276,321.93, 414,482.88 and 76,642.35

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Solution

The fourth proportional to 276,321.93, 414,482.88 and 76,642.35 is: 114,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,321.93 : 414,482.88 = 76,642.35 : x
  2. Step 2: Convert to fraction form
    276,321.93/414,482.88 = 76,642.35/x
  3. Step 3: Cross multiply
    276,321.93x = 414,482.88 × 76,642.35
  4. Step 4: Simplify right side
    276,321.93x = 31,766,941,957.97
  5. Step 5: Solve for x
    x = 31,766,941,957.97/276,321.93
  6. Step 6: Final answer
    x = 114,963.52

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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.