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Finding the Fourth Proportional to 352,272, 528,505.20 and 102,954

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Solution

The fourth proportional to 352,272, 528,505.20 and 102,954 is: 154,459.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,272 : 528,505.20 = 102,954 : x
  2. Step 2: Convert to fraction form
    352,272/528,505.20 = 102,954/x
  3. Step 3: Cross multiply
    352,272x = 528,505.20 × 102,954
  4. Step 4: Simplify right side
    352,272x = 54,411,724,360.80
  5. Step 5: Solve for x
    x = 54,411,724,360.80/352,272
  6. Step 6: Final answer
    x = 154,459.41

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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.