Home / 215,420.85-323,145.68-73,264.05

Finding the Fourth Proportional to 215,420.85, 323,145.68 and 73,264.05

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Solution

The fourth proportional to 215,420.85, 323,145.68 and 73,264.05 is: 109,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,420.85 : 323,145.68 = 73,264.05 : x
  2. Step 2: Convert to fraction form
    215,420.85/323,145.68 = 73,264.05/x
  3. Step 3: Cross multiply
    215,420.85x = 323,145.68 × 73,264.05
  4. Step 4: Simplify right side
    215,420.85x = 23,674,960,890.48
  5. Step 5: Solve for x
    x = 23,674,960,890.48/215,420.85
  6. Step 6: Final answer
    x = 109,900.97

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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.