Home / 257,977.15-355,996.49-143,263.07

Finding the Fourth Proportional to 257,977.15, 355,996.49 and 143,263.07

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Solution

The fourth proportional to 257,977.15, 355,996.49 and 143,263.07 is: 197,696.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,977.15 : 355,996.49 = 143,263.07 : x
  2. Step 2: Convert to fraction form
    257,977.15/355,996.49 = 143,263.07/x
  3. Step 3: Cross multiply
    257,977.15x = 355,996.49 × 143,263.07
  4. Step 4: Simplify right side
    257,977.15x = 51,001,150,066.62
  5. Step 5: Solve for x
    x = 51,001,150,066.62/257,977.15
  6. Step 6: Final answer
    x = 197,696.39

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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.