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Finding the Fourth Proportional to 169,103.80, 253,655.70 and 166,646.20

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Solution

The fourth proportional to 169,103.80, 253,655.70 and 166,646.20 is: 249,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,103.80 : 253,655.70 = 166,646.20 : x
  2. Step 2: Convert to fraction form
    169,103.80/253,655.70 = 166,646.20/x
  3. Step 3: Cross multiply
    169,103.80x = 253,655.70 × 166,646.20
  4. Step 4: Simplify right side
    169,103.80x = 42,270,758,513.34
  5. Step 5: Solve for x
    x = 42,270,758,513.34/169,103.80
  6. Step 6: Final answer
    x = 249,969.30

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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.