Home / 258,982.20-357,394.14-145,805.76

Finding the Fourth Proportional to 258,982.20, 357,394.14 and 145,805.76

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Solution

The fourth proportional to 258,982.20, 357,394.14 and 145,805.76 is: 201,211.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,982.20 : 357,394.14 = 145,805.76 : x
  2. Step 2: Convert to fraction form
    258,982.20/357,394.14 = 145,805.76/x
  3. Step 3: Cross multiply
    258,982.20x = 357,394.14 × 145,805.76
  4. Step 4: Simplify right side
    258,982.20x = 52,110,124,202.25
  5. Step 5: Solve for x
    x = 52,110,124,202.25/258,982.20
  6. Step 6: Final answer
    x = 201,211.22

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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.