Home / 220,416.50-304,200.42-123,647.06

Finding the Fourth Proportional to 220,416.50, 304,200.42 and 123,647.06

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Solution

The fourth proportional to 220,416.50, 304,200.42 and 123,647.06 is: 170,647.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,416.50 : 304,200.42 = 123,647.06 : x
  2. Step 2: Convert to fraction form
    220,416.50/304,200.42 = 123,647.06/x
  3. Step 3: Cross multiply
    220,416.50x = 304,200.42 × 123,647.06
  4. Step 4: Simplify right side
    220,416.50x = 37,613,487,583.77
  5. Step 5: Solve for x
    x = 37,613,487,583.77/220,416.50
  6. Step 6: Final answer
    x = 170,647.33

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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.