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Finding the Fourth Proportional to 220,666.96, 304,521.96 and 120,065.68

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Solution

The fourth proportional to 220,666.96, 304,521.96 and 120,065.68 is: 165,691.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,666.96 : 304,521.96 = 120,065.68 : x
  2. Step 2: Convert to fraction form
    220,666.96/304,521.96 = 120,065.68/x
  3. Step 3: Cross multiply
    220,666.96x = 304,521.96 × 120,065.68
  4. Step 4: Simplify right side
    220,666.96x = 36,562,636,202.33
  5. Step 5: Solve for x
    x = 36,562,636,202.33/220,666.96
  6. Step 6: Final answer
    x = 165,691.48

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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.