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Finding the Fourth Proportional to 234,157.76, 323,103.84 and 138,668.48

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Solution

The fourth proportional to 234,157.76, 323,103.84 and 138,668.48 is: 191,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,157.76 : 323,103.84 = 138,668.48 : x
  2. Step 2: Convert to fraction form
    234,157.76/323,103.84 = 138,668.48/x
  3. Step 3: Cross multiply
    234,157.76x = 323,103.84 × 138,668.48
  4. Step 4: Simplify right side
    234,157.76x = 44,804,318,374.96
  5. Step 5: Solve for x
    x = 44,804,318,374.96/234,157.76
  6. Step 6: Final answer
    x = 191,342.45

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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.