Home / 257,453.42-355,294.35-142,725.23

Finding the Fourth Proportional to 257,453.42, 355,294.35 and 142,725.23

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Solution

The fourth proportional to 257,453.42, 355,294.35 and 142,725.23 is: 196,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,453.42 : 355,294.35 = 142,725.23 : x
  2. Step 2: Convert to fraction form
    257,453.42/355,294.35 = 142,725.23/x
  3. Step 3: Cross multiply
    257,453.42x = 355,294.35 × 142,725.23
  4. Step 4: Simplify right side
    257,453.42x = 50,709,466,044.98
  5. Step 5: Solve for x
    x = 50,709,466,044.98/257,453.42
  6. Step 6: Final answer
    x = 196,965.60

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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.