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Finding the Fourth Proportional to 221,053.68, 305,046 and 130,413.60

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Solution

The fourth proportional to 221,053.68, 305,046 and 130,413.60 is: 179,966.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,053.68 : 305,046 = 130,413.60 : x
  2. Step 2: Convert to fraction form
    221,053.68/305,046 = 130,413.60/x
  3. Step 3: Cross multiply
    221,053.68x = 305,046 × 130,413.60
  4. Step 4: Simplify right side
    221,053.68x = 39,782,147,025.60
  5. Step 5: Solve for x
    x = 39,782,147,025.60/221,053.68
  6. Step 6: Final answer
    x = 179,966.00

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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.