Home / 389,440.20-584,257.50-108,955.02

Finding the Fourth Proportional to 389,440.20, 584,257.50 and 108,955.02

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Solution

The fourth proportional to 389,440.20, 584,257.50 and 108,955.02 is: 163,459.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,440.20 : 584,257.50 = 108,955.02 : x
  2. Step 2: Convert to fraction form
    389,440.20/584,257.50 = 108,955.02/x
  3. Step 3: Cross multiply
    389,440.20x = 584,257.50 × 108,955.02
  4. Step 4: Simplify right side
    389,440.20x = 63,657,787,597.65
  5. Step 5: Solve for x
    x = 63,657,787,597.65/389,440.20
  6. Step 6: Final answer
    x = 163,459.72

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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.