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Finding the Fourth Proportional to 599,384.51, 899,136.90 and 172,930.90

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Solution

The fourth proportional to 599,384.51, 899,136.90 and 172,930.90 is: 259,413.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,384.51 : 899,136.90 = 172,930.90 : x
  2. Step 2: Convert to fraction form
    599,384.51/899,136.90 = 172,930.90/x
  3. Step 3: Cross multiply
    599,384.51x = 899,136.90 × 172,930.90
  4. Step 4: Simplify right side
    599,384.51x = 155,488,553,340.21
  5. Step 5: Solve for x
    x = 155,488,553,340.21/599,384.51
  6. Step 6: Final answer
    x = 259,413.70

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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.