Home / 220,403.77-304,175.32-123,605.76

Finding the Fourth Proportional to 220,403.77, 304,175.32 and 123,605.76

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Solution

The fourth proportional to 220,403.77, 304,175.32 and 123,605.76 is: 170,586.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,403.77 : 304,175.32 = 123,605.76 : x
  2. Step 2: Convert to fraction form
    220,403.77/304,175.32 = 123,605.76/x
  3. Step 3: Cross multiply
    220,403.77x = 304,175.32 × 123,605.76
  4. Step 4: Simplify right side
    220,403.77x = 37,597,822,433.49
  5. Step 5: Solve for x
    x = 37,597,822,433.49/220,403.77
  6. Step 6: Final answer
    x = 170,586.12

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1.5x scale

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.