Home / 238,240.20-357,297.12-80,436

Finding the Fourth Proportional to 238,240.20, 357,297.12 and 80,436

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Solution

The fourth proportional to 238,240.20, 357,297.12 and 80,436 is: 120,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,240.20 : 357,297.12 = 80,436 : x
  2. Step 2: Convert to fraction form
    238,240.20/357,297.12 = 80,436/x
  3. Step 3: Cross multiply
    238,240.20x = 357,297.12 × 80,436
  4. Step 4: Simplify right side
    238,240.20x = 28,739,551,144.32
  5. Step 5: Solve for x
    x = 28,739,551,144.32/238,240.20
  6. Step 6: Final answer
    x = 120,632.67

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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.