Home / 258,711.52-357,021.78-145,534.26

Finding the Fourth Proportional to 258,711.52, 357,021.78 and 145,534.26

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Solution

The fourth proportional to 258,711.52, 357,021.78 and 145,534.26 is: 200,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,711.52 : 357,021.78 = 145,534.26 : x
  2. Step 2: Convert to fraction form
    258,711.52/357,021.78 = 145,534.26/x
  3. Step 3: Cross multiply
    258,711.52x = 357,021.78 × 145,534.26
  4. Step 4: Simplify right side
    258,711.52x = 51,958,900,556.18
  5. Step 5: Solve for x
    x = 51,958,900,556.18/258,711.52
  6. Step 6: Final answer
    x = 200,837.21

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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.