Home / 389,725.32-584,522.10-109,178.04

Finding the Fourth Proportional to 389,725.32, 584,522.10 and 109,178.04

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Solution

The fourth proportional to 389,725.32, 584,522.10 and 109,178.04 is: 163,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,725.32 : 584,522.10 = 109,178.04 : x
  2. Step 2: Convert to fraction form
    389,725.32/584,522.10 = 109,178.04/x
  3. Step 3: Cross multiply
    389,725.32x = 584,522.10 × 109,178.04
  4. Step 4: Simplify right side
    389,725.32x = 63,816,977,214.68
  5. Step 5: Solve for x
    x = 63,816,977,214.68/389,725.32
  6. Step 6: Final answer
    x = 163,748.60

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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.