Home / 257,259.24-355,022.64-144,081.72

Finding the Fourth Proportional to 257,259.24, 355,022.64 and 144,081.72

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Solution

The fourth proportional to 257,259.24, 355,022.64 and 144,081.72 is: 198,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,259.24 : 355,022.64 = 144,081.72 : x
  2. Step 2: Convert to fraction form
    257,259.24/355,022.64 = 144,081.72/x
  3. Step 3: Cross multiply
    257,259.24x = 355,022.64 × 144,081.72
  4. Step 4: Simplify right side
    257,259.24x = 51,152,272,610.14
  5. Step 5: Solve for x
    x = 51,152,272,610.14/257,259.24
  6. Step 6: Final answer
    x = 198,835.51

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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.