Home / 257,335.28-355,123.52-142,615.80

Finding the Fourth Proportional to 257,335.28, 355,123.52 and 142,615.80

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Solution

The fourth proportional to 257,335.28, 355,123.52 and 142,615.80 is: 196,810.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,335.28 : 355,123.52 = 142,615.80 : x
  2. Step 2: Convert to fraction form
    257,335.28/355,123.52 = 142,615.80/x
  3. Step 3: Cross multiply
    257,335.28x = 355,123.52 × 142,615.80
  4. Step 4: Simplify right side
    257,335.28x = 50,646,224,903.62
  5. Step 5: Solve for x
    x = 50,646,224,903.62/257,335.28
  6. Step 6: Final answer
    x = 196,810.27

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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.