Home / 257,519.28-355,372.80-142,798.08

Finding the Fourth Proportional to 257,519.28, 355,372.80 and 142,798.08

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Solution

The fourth proportional to 257,519.28, 355,372.80 and 142,798.08 is: 197,059.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,519.28 : 355,372.80 = 142,798.08 : x
  2. Step 2: Convert to fraction form
    257,519.28/355,372.80 = 142,798.08/x
  3. Step 3: Cross multiply
    257,519.28x = 355,372.80 × 142,798.08
  4. Step 4: Simplify right side
    257,519.28x = 50,746,553,524.22
  5. Step 5: Solve for x
    x = 50,746,553,524.22/257,519.28
  6. Step 6: Final answer
    x = 197,059.24

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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.