Home / 208,479.32-312,718.44-146,426.84

Finding the Fourth Proportional to 208,479.32, 312,718.44 and 146,426.84

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Solution

The fourth proportional to 208,479.32, 312,718.44 and 146,426.84 is: 219,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,479.32 : 312,718.44 = 146,426.84 : x
  2. Step 2: Convert to fraction form
    208,479.32/312,718.44 = 146,426.84/x
  3. Step 3: Cross multiply
    208,479.32x = 312,718.44 × 146,426.84
  4. Step 4: Simplify right side
    208,479.32x = 45,790,372,978.93
  5. Step 5: Solve for x
    x = 45,790,372,978.93/208,479.32
  6. Step 6: Final answer
    x = 219,639.88

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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.