Home / 257,131.92-384,134.15-166,435.75

Finding the Fourth Proportional to 257,131.92, 384,134.15 and 166,435.75

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Solution

The fourth proportional to 257,131.92, 384,134.15 and 166,435.75 is: 248,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,131.92 : 384,134.15 = 166,435.75 : x
  2. Step 2: Convert to fraction form
    257,131.92/384,134.15 = 166,435.75/x
  3. Step 3: Cross multiply
    257,131.92x = 384,134.15 × 166,435.75
  4. Step 4: Simplify right side
    257,131.92x = 63,933,652,603.01
  5. Step 5: Solve for x
    x = 63,933,652,603.01/257,131.92
  6. Step 6: Final answer
    x = 248,641.45

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.