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Finding the Fourth Proportional to 220,703.35, 304,549.57 and 123,885.03

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Solution

The fourth proportional to 220,703.35, 304,549.57 and 123,885.03 is: 170,949.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,703.35 : 304,549.57 = 123,885.03 : x
  2. Step 2: Convert to fraction form
    220,703.35/304,549.57 = 123,885.03/x
  3. Step 3: Cross multiply
    220,703.35x = 304,549.57 × 123,885.03
  4. Step 4: Simplify right side
    220,703.35x = 37,729,132,199.76
  5. Step 5: Solve for x
    x = 37,729,132,199.76/220,703.35
  6. Step 6: Final answer
    x = 170,949.52

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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.