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Finding the Fourth Proportional to 234,466.20, 323,526.80 and 138,957.48

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Solution

The fourth proportional to 234,466.20, 323,526.80 and 138,957.48 is: 191,739.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,466.20 : 323,526.80 = 138,957.48 : x
  2. Step 2: Convert to fraction form
    234,466.20/323,526.80 = 138,957.48/x
  3. Step 3: Cross multiply
    234,466.20x = 323,526.80 × 138,957.48
  4. Step 4: Simplify right side
    234,466.20x = 44,956,468,840.46
  5. Step 5: Solve for x
    x = 44,956,468,840.46/234,466.20
  6. Step 6: Final answer
    x = 191,739.66

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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.