Home / 220,899.60-304,839.18-120,297.60

Finding the Fourth Proportional to 220,899.60, 304,839.18 and 120,297.60

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Solution

The fourth proportional to 220,899.60, 304,839.18 and 120,297.60 is: 166,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,899.60 : 304,839.18 = 120,297.60 : x
  2. Step 2: Convert to fraction form
    220,899.60/304,839.18 = 120,297.60/x
  3. Step 3: Cross multiply
    220,899.60x = 304,839.18 × 120,297.60
  4. Step 4: Simplify right side
    220,899.60x = 36,671,421,739.97
  5. Step 5: Solve for x
    x = 36,671,421,739.97/220,899.60
  6. Step 6: Final answer
    x = 166,009.45

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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.