Home / 345,020.52-517,366.80-120,353.70

Finding the Fourth Proportional to 345,020.52, 517,366.80 and 120,353.70

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Solution

The fourth proportional to 345,020.52, 517,366.80 and 120,353.70 is: 180,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,020.52 : 517,366.80 = 120,353.70 : x
  2. Step 2: Convert to fraction form
    345,020.52/517,366.80 = 120,353.70/x
  3. Step 3: Cross multiply
    345,020.52x = 517,366.80 × 120,353.70
  4. Step 4: Simplify right side
    345,020.52x = 62,267,008,637.16
  5. Step 5: Solve for x
    x = 62,267,008,637.16/345,020.52
  6. Step 6: Final answer
    x = 180,473.35

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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.