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Finding the Fourth Proportional to 169,805, 254,357.40 and 99,471.08

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Solution

The fourth proportional to 169,805, 254,357.40 and 99,471.08 is: 149,001.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,805 : 254,357.40 = 99,471.08 : x
  2. Step 2: Convert to fraction form
    169,805/254,357.40 = 99,471.08/x
  3. Step 3: Cross multiply
    169,805x = 254,357.40 × 99,471.08
  4. Step 4: Simplify right side
    169,805x = 25,301,205,283.99
  5. Step 5: Solve for x
    x = 25,301,205,283.99/169,805
  6. Step 6: Final answer
    x = 149,001.53

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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.