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Finding the Fourth Proportional to 169,530.30, 254,295.45 and 166,419.90

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Solution

The fourth proportional to 169,530.30, 254,295.45 and 166,419.90 is: 249,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,530.30 : 254,295.45 = 166,419.90 : x
  2. Step 2: Convert to fraction form
    169,530.30/254,295.45 = 166,419.90/x
  3. Step 3: Cross multiply
    169,530.30x = 254,295.45 × 166,419.90
  4. Step 4: Simplify right side
    169,530.30x = 42,319,823,359.46
  5. Step 5: Solve for x
    x = 42,319,823,359.46/169,530.30
  6. Step 6: Final answer
    x = 249,629.85

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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.