Home / 257,535.45-355,392.30-142,812.26

Finding the Fourth Proportional to 257,535.45, 355,392.30 and 142,812.26

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Solution

The fourth proportional to 257,535.45, 355,392.30 and 142,812.26 is: 197,077.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,535.45 : 355,392.30 = 142,812.26 : x
  2. Step 2: Convert to fraction form
    257,535.45/355,392.30 = 142,812.26/x
  3. Step 3: Cross multiply
    257,535.45x = 355,392.30 × 142,812.26
  4. Step 4: Simplify right side
    257,535.45x = 50,754,375,772.64
  5. Step 5: Solve for x
    x = 50,754,375,772.64/257,535.45
  6. Step 6: Final answer
    x = 197,077.24

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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.