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Finding the Fourth Proportional to 309,521.79, 464,413.91 and 169,116.39

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Solution

The fourth proportional to 309,521.79, 464,413.91 and 169,116.39 is: 253,746.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,521.79 : 464,413.91 = 169,116.39 : x
  2. Step 2: Convert to fraction form
    309,521.79/464,413.91 = 169,116.39/x
  3. Step 3: Cross multiply
    309,521.79x = 464,413.91 × 169,116.39
  4. Step 4: Simplify right side
    309,521.79x = 78,540,003,079.40
  5. Step 5: Solve for x
    x = 78,540,003,079.40/309,521.79
  6. Step 6: Final answer
    x = 253,746.28

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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.