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Finding the Fourth Proportional to 289,052.40, 433,654.20 and 111,565.20

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Solution

The fourth proportional to 289,052.40, 433,654.20 and 111,565.20 is: 167,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,052.40 : 433,654.20 = 111,565.20 : x
  2. Step 2: Convert to fraction form
    289,052.40/433,654.20 = 111,565.20/x
  3. Step 3: Cross multiply
    289,052.40x = 433,654.20 × 111,565.20
  4. Step 4: Simplify right side
    289,052.40x = 48,380,717,553.84
  5. Step 5: Solve for x
    x = 48,380,717,553.84/289,052.40
  6. Step 6: Final answer
    x = 167,376.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.