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Finding the Fourth Proportional to 435,090, 652,635 and 154,618.32

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Solution

The fourth proportional to 435,090, 652,635 and 154,618.32 is: 231,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,090 : 652,635 = 154,618.32 : x
  2. Step 2: Convert to fraction form
    435,090/652,635 = 154,618.32/x
  3. Step 3: Cross multiply
    435,090x = 652,635 × 154,618.32
  4. Step 4: Simplify right side
    435,090x = 100,909,327,273.20
  5. Step 5: Solve for x
    x = 100,909,327,273.20/435,090
  6. Step 6: Final answer
    x = 231,927.48

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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.