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Finding the Fourth Proportional to 311,413.26, 429,750.29 and 168,173.29

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Solution

The fourth proportional to 311,413.26, 429,750.29 and 168,173.29 is: 232,079.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,413.26 : 429,750.29 = 168,173.29 : x
  2. Step 2: Convert to fraction form
    311,413.26/429,750.29 = 168,173.29/x
  3. Step 3: Cross multiply
    311,413.26x = 429,750.29 × 168,173.29
  4. Step 4: Simplify right side
    311,413.26x = 72,272,521,105.38
  5. Step 5: Solve for x
    x = 72,272,521,105.38/311,413.26
  6. Step 6: Final answer
    x = 232,079.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.