Home / 257,721.96-355,674.06-144,552

Finding the Fourth Proportional to 257,721.96, 355,674.06 and 144,552

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Solution

The fourth proportional to 257,721.96, 355,674.06 and 144,552 is: 199,491.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,721.96 : 355,674.06 = 144,552 : x
  2. Step 2: Convert to fraction form
    257,721.96/355,674.06 = 144,552/x
  3. Step 3: Cross multiply
    257,721.96x = 355,674.06 × 144,552
  4. Step 4: Simplify right side
    257,721.96x = 51,413,396,721.12
  5. Step 5: Solve for x
    x = 51,413,396,721.12/257,721.96
  6. Step 6: Final answer
    x = 199,491.72

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1.5x scale

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.