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Finding the Fourth Proportional to 328,899.76, 493,308.63 and 92,260.89

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Solution

The fourth proportional to 328,899.76, 493,308.63 and 92,260.89 is: 138,379.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,899.76 : 493,308.63 = 92,260.89 : x
  2. Step 2: Convert to fraction form
    328,899.76/493,308.63 = 92,260.89/x
  3. Step 3: Cross multiply
    328,899.76x = 493,308.63 × 92,260.89
  4. Step 4: Simplify right side
    328,899.76x = 45,513,093,248.48
  5. Step 5: Solve for x
    x = 45,513,093,248.48/328,899.76
  6. Step 6: Final answer
    x = 138,379.83

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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.