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Finding the Fourth Proportional to 1,373.77, 2,060.64 and 333.78

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Solution

The fourth proportional to 1,373.77, 2,060.64 and 333.78 is: 500.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.77 : 2,060.64 = 333.78 : x
  2. Step 2: Convert to fraction form
    1,373.77/2,060.64 = 333.78/x
  3. Step 3: Cross multiply
    1,373.77x = 2,060.64 × 333.78
  4. Step 4: Simplify right side
    1,373.77x = 687,803.90
  5. Step 5: Solve for x
    x = 687,803.90/1,373.77
  6. Step 6: Final answer
    x = 500.67

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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.