Home / 457,218.96-686,271.24-220,727.67

Finding the Fourth Proportional to 457,218.96, 686,271.24 and 220,727.67

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Solution

The fourth proportional to 457,218.96, 686,271.24 and 220,727.67 is: 331,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,218.96 : 686,271.24 = 220,727.67 : x
  2. Step 2: Convert to fraction form
    457,218.96/686,271.24 = 220,727.67/x
  3. Step 3: Cross multiply
    457,218.96x = 686,271.24 × 220,727.67
  4. Step 4: Simplify right side
    457,218.96x = 151,479,051,793.21
  5. Step 5: Solve for x
    x = 151,479,051,793.21/457,218.96
  6. Step 6: Final answer
    x = 331,305.27

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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.