Home / 345,176.20-517,278.30-274,220.20

Finding the Fourth Proportional to 345,176.20, 517,278.30 and 274,220.20

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Solution

The fourth proportional to 345,176.20, 517,278.30 and 274,220.20 is: 410,944.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,176.20 : 517,278.30 = 274,220.20 : x
  2. Step 2: Convert to fraction form
    345,176.20/517,278.30 = 274,220.20/x
  3. Step 3: Cross multiply
    345,176.20x = 517,278.30 × 274,220.20
  4. Step 4: Simplify right side
    345,176.20x = 141,848,158,881.66
  5. Step 5: Solve for x
    x = 141,848,158,881.66/345,176.20
  6. Step 6: Final answer
    x = 410,944.20

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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.