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Finding the Fourth Proportional to 258,729.54, 356,916.12 and 151,229.34

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Solution

The fourth proportional to 258,729.54, 356,916.12 and 151,229.34 is: 208,620.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,729.54 : 356,916.12 = 151,229.34 : x
  2. Step 2: Convert to fraction form
    258,729.54/356,916.12 = 151,229.34/x
  3. Step 3: Cross multiply
    258,729.54x = 356,916.12 × 151,229.34
  4. Step 4: Simplify right side
    258,729.54x = 53,976,189,262.96
  5. Step 5: Solve for x
    x = 53,976,189,262.96/258,729.54
  6. Step 6: Final answer
    x = 208,620.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.