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Finding the Fourth Proportional to 557,538.84, 836,011.80 and 220,565.88

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Solution

The fourth proportional to 557,538.84, 836,011.80 and 220,565.88 is: 330,731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,538.84 : 836,011.80 = 220,565.88 : x
  2. Step 2: Convert to fraction form
    557,538.84/836,011.80 = 220,565.88/x
  3. Step 3: Cross multiply
    557,538.84x = 836,011.80 × 220,565.88
  4. Step 4: Simplify right side
    557,538.84x = 184,395,678,357.38
  5. Step 5: Solve for x
    x = 184,395,678,357.38/557,538.84
  6. Step 6: Final answer
    x = 330,731.54

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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.