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Finding the Fourth Proportional to 257,800.69, 355,767.38 and 144,625.87

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Solution

The fourth proportional to 257,800.69, 355,767.38 and 144,625.87 is: 199,585.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,800.69 : 355,767.38 = 144,625.87 : x
  2. Step 2: Convert to fraction form
    257,800.69/355,767.38 = 144,625.87/x
  3. Step 3: Cross multiply
    257,800.69x = 355,767.38 × 144,625.87
  4. Step 4: Simplify right side
    257,800.69x = 51,453,166,850.12
  5. Step 5: Solve for x
    x = 51,453,166,850.12/257,800.69
  6. Step 6: Final answer
    x = 199,585.06

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