Home / 258,771.40-357,079.14-145,591.72

Finding the Fourth Proportional to 258,771.40, 357,079.14 and 145,591.72

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Solution

The fourth proportional to 258,771.40, 357,079.14 and 145,591.72 is: 200,902.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,771.40 : 357,079.14 = 145,591.72 : x
  2. Step 2: Convert to fraction form
    258,771.40/357,079.14 = 145,591.72/x
  3. Step 3: Cross multiply
    258,771.40x = 357,079.14 × 145,591.72
  4. Step 4: Simplify right side
    258,771.40x = 51,987,766,168.72
  5. Step 5: Solve for x
    x = 51,987,766,168.72/258,771.40
  6. Step 6: Final answer
    x = 200,902.29

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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.