Home / 398,252.49-597,157.32-131,867.67

Finding the Fourth Proportional to 398,252.49, 597,157.32 and 131,867.67

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Solution

The fourth proportional to 398,252.49, 597,157.32 and 131,867.67 is: 197,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,252.49 : 597,157.32 = 131,867.67 : x
  2. Step 2: Convert to fraction form
    398,252.49/597,157.32 = 131,867.67/x
  3. Step 3: Cross multiply
    398,252.49x = 597,157.32 × 131,867.67
  4. Step 4: Simplify right side
    398,252.49x = 78,745,744,411.84
  5. Step 5: Solve for x
    x = 78,745,744,411.84/398,252.49
  6. Step 6: Final answer
    x = 197,728.19

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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.