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Finding the Fourth Proportional to 234,890.12, 352,335.18 and 68,678.12

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Solution

The fourth proportional to 234,890.12, 352,335.18 and 68,678.12 is: 103,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,890.12 : 352,335.18 = 68,678.12 : x
  2. Step 2: Convert to fraction form
    234,890.12/352,335.18 = 68,678.12/x
  3. Step 3: Cross multiply
    234,890.12x = 352,335.18 × 68,678.12
  4. Step 4: Simplify right side
    234,890.12x = 24,197,717,772.26
  5. Step 5: Solve for x
    x = 24,197,717,772.26/234,890.12
  6. Step 6: Final answer
    x = 103,017.18

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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.