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Finding the Fourth Proportional to 284,107.37, 392,215.57 and 207,540.50

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Solution

The fourth proportional to 284,107.37, 392,215.57 and 207,540.50 is: 286,513.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,107.37 : 392,215.57 = 207,540.50 : x
  2. Step 2: Convert to fraction form
    284,107.37/392,215.57 = 207,540.50/x
  3. Step 3: Cross multiply
    284,107.37x = 392,215.57 × 207,540.50
  4. Step 4: Simplify right side
    284,107.37x = 81,400,613,025.66
  5. Step 5: Solve for x
    x = 81,400,613,025.66/284,107.37
  6. Step 6: Final answer
    x = 286,513.56

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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.