Home / 257,548.60-355,415.96-144,371.36

Finding the Fourth Proportional to 257,548.60, 355,415.96 and 144,371.36

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Solution

The fourth proportional to 257,548.60, 355,415.96 and 144,371.36 is: 199,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,548.60 : 355,415.96 = 144,371.36 : x
  2. Step 2: Convert to fraction form
    257,548.60/355,415.96 = 144,371.36/x
  3. Step 3: Cross multiply
    257,548.60x = 355,415.96 × 144,371.36
  4. Step 4: Simplify right side
    257,548.60x = 51,311,885,510.91
  5. Step 5: Solve for x
    x = 51,311,885,510.91/257,548.60
  6. Step 6: Final answer
    x = 199,231.86

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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.