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Finding the Fourth Proportional to 352,238, 528,434.76 and 130,622

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Solution

The fourth proportional to 352,238, 528,434.76 and 130,622 is: 195,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,238 : 528,434.76 = 130,622 : x
  2. Step 2: Convert to fraction form
    352,238/528,434.76 = 130,622/x
  3. Step 3: Cross multiply
    352,238x = 528,434.76 × 130,622
  4. Step 4: Simplify right side
    352,238x = 69,025,205,220.72
  5. Step 5: Solve for x
    x = 69,025,205,220.72/352,238
  6. Step 6: Final answer
    x = 195,961.84

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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.