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Finding the Fourth Proportional to 220,679.99, 304,560.83 and 130,065.19

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Solution

The fourth proportional to 220,679.99, 304,560.83 and 130,065.19 is: 179,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,679.99 : 304,560.83 = 130,065.19 : x
  2. Step 2: Convert to fraction form
    220,679.99/304,560.83 = 130,065.19/x
  3. Step 3: Cross multiply
    220,679.99x = 304,560.83 × 130,065.19
  4. Step 4: Simplify right side
    220,679.99x = 39,612,761,784.27
  5. Step 5: Solve for x
    x = 39,612,761,784.27/220,679.99
  6. Step 6: Final answer
    x = 179,503.19

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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.