Home / 388,922.25-583,481.79-108,439.50

Finding the Fourth Proportional to 388,922.25, 583,481.79 and 108,439.50

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Solution

The fourth proportional to 388,922.25, 583,481.79 and 108,439.50 is: 162,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,922.25 : 583,481.79 = 108,439.50 : x
  2. Step 2: Convert to fraction form
    388,922.25/583,481.79 = 108,439.50/x
  3. Step 3: Cross multiply
    388,922.25x = 583,481.79 × 108,439.50
  4. Step 4: Simplify right side
    388,922.25x = 63,272,473,566.71
  5. Step 5: Solve for x
    x = 63,272,473,566.71/388,922.25
  6. Step 6: Final answer
    x = 162,686.69

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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.