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Finding the Fourth Proportional to 199,799.09, 275,801.65 and 123,349.10

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Solution

The fourth proportional to 199,799.09, 275,801.65 and 123,349.10 is: 170,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,799.09 : 275,801.65 = 123,349.10 : x
  2. Step 2: Convert to fraction form
    199,799.09/275,801.65 = 123,349.10/x
  3. Step 3: Cross multiply
    199,799.09x = 275,801.65 × 123,349.10
  4. Step 4: Simplify right side
    199,799.09x = 34,019,883,618.63
  5. Step 5: Solve for x
    x = 34,019,883,618.63/199,799.09
  6. Step 6: Final answer
    x = 170,270.46

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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.