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Finding the Fourth Proportional to 288,413.48, 432,627.21 and 88,735.52

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Solution

The fourth proportional to 288,413.48, 432,627.21 and 88,735.52 is: 133,105.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,413.48 : 432,627.21 = 88,735.52 : x
  2. Step 2: Convert to fraction form
    288,413.48/432,627.21 = 88,735.52/x
  3. Step 3: Cross multiply
    288,413.48x = 432,627.21 × 88,735.52
  4. Step 4: Simplify right side
    288,413.48x = 38,389,401,527.07
  5. Step 5: Solve for x
    x = 38,389,401,527.07/288,413.48
  6. Step 6: Final answer
    x = 133,105.43

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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.