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Finding the Fourth Proportional to 268,204.61, 370,128.88 and 147,353.72

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Solution

The fourth proportional to 268,204.61, 370,128.88 and 147,353.72 is: 203,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,204.61 : 370,128.88 = 147,353.72 : x
  2. Step 2: Convert to fraction form
    268,204.61/370,128.88 = 147,353.72/x
  3. Step 3: Cross multiply
    268,204.61x = 370,128.88 × 147,353.72
  4. Step 4: Simplify right side
    268,204.61x = 54,539,867,347.43
  5. Step 5: Solve for x
    x = 54,539,867,347.43/268,204.61
  6. Step 6: Final answer
    x = 203,351.71

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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.