Home / 485,178.12-669,543.30-270,304.92

Finding the Fourth Proportional to 485,178.12, 669,543.30 and 270,304.92

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Solution

The fourth proportional to 485,178.12, 669,543.30 and 270,304.92 is: 373,019.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,178.12 : 669,543.30 = 270,304.92 : x
  2. Step 2: Convert to fraction form
    485,178.12/669,543.30 = 270,304.92/x
  3. Step 3: Cross multiply
    485,178.12x = 669,543.30 × 270,304.92
  4. Step 4: Simplify right side
    485,178.12x = 180,980,848,143.04
  5. Step 5: Solve for x
    x = 180,980,848,143.04/485,178.12
  6. Step 6: Final answer
    x = 373,019.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.