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Finding the Fourth Proportional to 262,227.78, 392,495.73 and 135,693.93

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Solution

The fourth proportional to 262,227.78, 392,495.73 and 135,693.93 is: 203,103.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,227.78 : 392,495.73 = 135,693.93 : x
  2. Step 2: Convert to fraction form
    262,227.78/392,495.73 = 135,693.93/x
  3. Step 3: Cross multiply
    262,227.78x = 392,495.73 × 135,693.93
  4. Step 4: Simplify right side
    262,227.78x = 53,259,289,074.93
  5. Step 5: Solve for x
    x = 53,259,289,074.93/262,227.78
  6. Step 6: Final answer
    x = 203,103.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.