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Finding the Fourth Proportional to 252,936.60, 379,404.90 and 238,421.40

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Solution

The fourth proportional to 252,936.60, 379,404.90 and 238,421.40 is: 357,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,936.60 : 379,404.90 = 238,421.40 : x
  2. Step 2: Convert to fraction form
    252,936.60/379,404.90 = 238,421.40/x
  3. Step 3: Cross multiply
    252,936.60x = 379,404.90 × 238,421.40
  4. Step 4: Simplify right side
    252,936.60x = 90,458,247,424.86
  5. Step 5: Solve for x
    x = 90,458,247,424.86/252,936.60
  6. Step 6: Final answer
    x = 357,632.10

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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.