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Finding the Fourth Proportional to 171,335.40, 257,022.30 and 53,005.80

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Solution

The fourth proportional to 171,335.40, 257,022.30 and 53,005.80 is: 79,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,335.40 : 257,022.30 = 53,005.80 : x
  2. Step 2: Convert to fraction form
    171,335.40/257,022.30 = 53,005.80/x
  3. Step 3: Cross multiply
    171,335.40x = 257,022.30 × 53,005.80
  4. Step 4: Simplify right side
    171,335.40x = 13,623,672,629.34
  5. Step 5: Solve for x
    x = 13,623,672,629.34/171,335.40
  6. Step 6: Final answer
    x = 79,514.64

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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.