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Finding the Fourth Proportional to 538,985.60, 808,413.60 and 223,409.60

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Solution

The fourth proportional to 538,985.60, 808,413.60 and 223,409.60 is: 335,087.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,985.60 : 808,413.60 = 223,409.60 : x
  2. Step 2: Convert to fraction form
    538,985.60/808,413.60 = 223,409.60/x
  3. Step 3: Cross multiply
    538,985.60x = 808,413.60 × 223,409.60
  4. Step 4: Simplify right side
    538,985.60x = 180,607,359,010.56
  5. Step 5: Solve for x
    x = 180,607,359,010.56/538,985.60
  6. Step 6: Final answer
    x = 335,087.54

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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.