Home / 259,012.74-357,390.18-144,288.57

Finding the Fourth Proportional to 259,012.74, 357,390.18 and 144,288.57

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Solution

The fourth proportional to 259,012.74, 357,390.18 and 144,288.57 is: 199,091.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,012.74 : 357,390.18 = 144,288.57 : x
  2. Step 2: Convert to fraction form
    259,012.74/357,390.18 = 144,288.57/x
  3. Step 3: Cross multiply
    259,012.74x = 357,390.18 × 144,288.57
  4. Step 4: Simplify right side
    259,012.74x = 51,567,318,004.24
  5. Step 5: Solve for x
    x = 51,567,318,004.24/259,012.74
  6. Step 6: Final answer
    x = 199,091.82

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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.