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Finding the Fourth Proportional to 268,761.76, 370,906.54 and 154,059.48

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Solution

The fourth proportional to 268,761.76, 370,906.54 and 154,059.48 is: 212,610.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,761.76 : 370,906.54 = 154,059.48 : x
  2. Step 2: Convert to fraction form
    268,761.76/370,906.54 = 154,059.48/x
  3. Step 3: Cross multiply
    268,761.76x = 370,906.54 × 154,059.48
  4. Step 4: Simplify right side
    268,761.76x = 57,141,668,681.00
  5. Step 5: Solve for x
    x = 57,141,668,681.00/268,761.76
  6. Step 6: Final answer
    x = 212,610.86

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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.