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Finding the Fourth Proportional to 145,379.69, 217,846.96 and 97,818.62

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Solution

The fourth proportional to 145,379.69, 217,846.96 and 97,818.62 is: 146,578.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,379.69 : 217,846.96 = 97,818.62 : x
  2. Step 2: Convert to fraction form
    145,379.69/217,846.96 = 97,818.62/x
  3. Step 3: Cross multiply
    145,379.69x = 217,846.96 × 97,818.62
  4. Step 4: Simplify right side
    145,379.69x = 21,309,488,998.40
  5. Step 5: Solve for x
    x = 21,309,488,998.40/145,379.69
  6. Step 6: Final answer
    x = 146,578.17

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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.