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Finding the Fourth Proportional to 259,134.72, 357,618.09 and 151,739.36

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Solution

The fourth proportional to 259,134.72, 357,618.09 and 151,739.36 is: 209,407.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,134.72 : 357,618.09 = 151,739.36 : x
  2. Step 2: Convert to fraction form
    259,134.72/357,618.09 = 151,739.36/x
  3. Step 3: Cross multiply
    259,134.72x = 357,618.09 × 151,739.36
  4. Step 4: Simplify right side
    259,134.72x = 54,264,738,881.95
  5. Step 5: Solve for x
    x = 54,264,738,881.95/259,134.72
  6. Step 6: Final answer
    x = 209,407.44

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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.