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Finding the Fourth Proportional to 258,040.20, 386,404.20 and 246,230.40

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Solution

The fourth proportional to 258,040.20, 386,404.20 and 246,230.40 is: 368,719.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,040.20 : 386,404.20 = 246,230.40 : x
  2. Step 2: Convert to fraction form
    258,040.20/386,404.20 = 246,230.40/x
  3. Step 3: Cross multiply
    258,040.20x = 386,404.20 × 246,230.40
  4. Step 4: Simplify right side
    258,040.20x = 95,144,460,727.68
  5. Step 5: Solve for x
    x = 95,144,460,727.68/258,040.20
  6. Step 6: Final answer
    x = 368,719.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.