Home / 345,784.16-477,167.36-255,107.48

Finding the Fourth Proportional to 345,784.16, 477,167.36 and 255,107.48

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Solution

The fourth proportional to 345,784.16, 477,167.36 and 255,107.48 is: 352,037.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,784.16 : 477,167.36 = 255,107.48 : x
  2. Step 2: Convert to fraction form
    345,784.16/477,167.36 = 255,107.48/x
  3. Step 3: Cross multiply
    345,784.16x = 477,167.36 × 255,107.48
  4. Step 4: Simplify right side
    345,784.16x = 121,728,962,747.85
  5. Step 5: Solve for x
    x = 121,728,962,747.85/345,784.16
  6. Step 6: Final answer
    x = 352,037.42

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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.