Home / 255,934.48-353,217-142,796.56

Finding the Fourth Proportional to 255,934.48, 353,217 and 142,796.56

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Solution

The fourth proportional to 255,934.48, 353,217 and 142,796.56 is: 197,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,934.48 : 353,217 = 142,796.56 : x
  2. Step 2: Convert to fraction form
    255,934.48/353,217 = 142,796.56/x
  3. Step 3: Cross multiply
    255,934.48x = 353,217 × 142,796.56
  4. Step 4: Simplify right side
    255,934.48x = 50,438,172,533.52
  5. Step 5: Solve for x
    x = 50,438,172,533.52/255,934.48
  6. Step 6: Final answer
    x = 197,074.55

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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.