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Finding the Fourth Proportional to 328,854.48, 493,281.96 and 79,536.72

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Solution

The fourth proportional to 328,854.48, 493,281.96 and 79,536.72 is: 119,305.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,854.48 : 493,281.96 = 79,536.72 : x
  2. Step 2: Convert to fraction form
    328,854.48/493,281.96 = 79,536.72/x
  3. Step 3: Cross multiply
    328,854.48x = 493,281.96 × 79,536.72
  4. Step 4: Simplify right side
    328,854.48x = 39,234,029,133.57
  5. Step 5: Solve for x
    x = 39,234,029,133.57/328,854.48
  6. Step 6: Final answer
    x = 119,305.14

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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.