Home / 257,388.93-355,195.68-144,211.41

Finding the Fourth Proportional to 257,388.93, 355,195.68 and 144,211.41

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Solution

The fourth proportional to 257,388.93, 355,195.68 and 144,211.41 is: 199,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,388.93 : 355,195.68 = 144,211.41 : x
  2. Step 2: Convert to fraction form
    257,388.93/355,195.68 = 144,211.41/x
  3. Step 3: Cross multiply
    257,388.93x = 355,195.68 × 144,211.41
  4. Step 4: Simplify right side
    257,388.93x = 51,223,269,838.71
  5. Step 5: Solve for x
    x = 51,223,269,838.71/257,388.93
  6. Step 6: Final answer
    x = 199,011.16

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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.