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Finding the Fourth Proportional to 220,768.80, 304,652.16 and 120,166.80

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Solution

The fourth proportional to 220,768.80, 304,652.16 and 120,166.80 is: 165,825.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,768.80 : 304,652.16 = 120,166.80 : x
  2. Step 2: Convert to fraction form
    220,768.80/304,652.16 = 120,166.80/x
  3. Step 3: Cross multiply
    220,768.80x = 304,652.16 × 120,166.80
  4. Step 4: Simplify right side
    220,768.80x = 36,609,075,180.29
  5. Step 5: Solve for x
    x = 36,609,075,180.29/220,768.80
  6. Step 6: Final answer
    x = 165,825.40

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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.