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Finding the Fourth Proportional to 171,860.40, 257,809.80 and 53,530.80

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Solution

The fourth proportional to 171,860.40, 257,809.80 and 53,530.80 is: 80,302.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,860.40 : 257,809.80 = 53,530.80 : x
  2. Step 2: Convert to fraction form
    171,860.40/257,809.80 = 53,530.80/x
  3. Step 3: Cross multiply
    171,860.40x = 257,809.80 × 53,530.80
  4. Step 4: Simplify right side
    171,860.40x = 13,800,764,841.84
  5. Step 5: Solve for x
    x = 13,800,764,841.84/171,860.40
  6. Step 6: Final answer
    x = 80,302.18

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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.