Home / 257,678.27-355,598.15-142,964.44

Finding the Fourth Proportional to 257,678.27, 355,598.15 and 142,964.44

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Solution

The fourth proportional to 257,678.27, 355,598.15 and 142,964.44 is: 197,292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,678.27 : 355,598.15 = 142,964.44 : x
  2. Step 2: Convert to fraction form
    257,678.27/355,598.15 = 142,964.44/x
  3. Step 3: Cross multiply
    257,678.27x = 355,598.15 × 142,964.44
  4. Step 4: Simplify right side
    257,678.27x = 50,837,888,775.97
  5. Step 5: Solve for x
    x = 50,837,888,775.97/257,678.27
  6. Step 6: Final answer
    x = 197,292.11

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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.