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Finding the Fourth Proportional to 234,513.47, 352,240.89 and 139,928.20

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Solution

The fourth proportional to 234,513.47, 352,240.89 and 139,928.20 is: 210,173.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,513.47 : 352,240.89 = 139,928.20 : x
  2. Step 2: Convert to fraction form
    234,513.47/352,240.89 = 139,928.20/x
  3. Step 3: Cross multiply
    234,513.47x = 352,240.89 × 139,928.20
  4. Step 4: Simplify right side
    234,513.47x = 49,288,433,704.10
  5. Step 5: Solve for x
    x = 49,288,433,704.10/234,513.47
  6. Step 6: Final answer
    x = 210,173.15

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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.