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Finding the Fourth Proportional to 193,420.48, 290,220 and 88,271.68

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Solution

The fourth proportional to 193,420.48, 290,220 and 88,271.68 is: 132,448.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,420.48 : 290,220 = 88,271.68 : x
  2. Step 2: Convert to fraction form
    193,420.48/290,220 = 88,271.68/x
  3. Step 3: Cross multiply
    193,420.48x = 290,220 × 88,271.68
  4. Step 4: Simplify right side
    193,420.48x = 25,618,206,969.60
  5. Step 5: Solve for x
    x = 25,618,206,969.60/193,420.48
  6. Step 6: Final answer
    x = 132,448.26

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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.