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Finding the Fourth Proportional to 257,871.68, 355,771.68 and 168,499.52

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Solution

The fourth proportional to 257,871.68, 355,771.68 and 168,499.52 is: 232,469.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,871.68 : 355,771.68 = 168,499.52 : x
  2. Step 2: Convert to fraction form
    257,871.68/355,771.68 = 168,499.52/x
  3. Step 3: Cross multiply
    257,871.68x = 355,771.68 × 168,499.52
  4. Step 4: Simplify right side
    257,871.68x = 59,947,357,309.59
  5. Step 5: Solve for x
    x = 59,947,357,309.59/257,871.68
  6. Step 6: Final answer
    x = 232,469.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.