Home / 257,151.14-354,864.61-143,977.94

Finding the Fourth Proportional to 257,151.14, 354,864.61 and 143,977.94

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Solution

The fourth proportional to 257,151.14, 354,864.61 and 143,977.94 is: 198,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,151.14 : 354,864.61 = 143,977.94 : x
  2. Step 2: Convert to fraction form
    257,151.14/354,864.61 = 143,977.94/x
  3. Step 3: Cross multiply
    257,151.14x = 354,864.61 × 143,977.94
  4. Step 4: Simplify right side
    257,151.14x = 51,092,675,526.70
  5. Step 5: Solve for x
    x = 51,092,675,526.70/257,151.14
  6. Step 6: Final answer
    x = 198,687.34

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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.