Home / 215,520.65-323,307.78-73,355

Finding the Fourth Proportional to 215,520.65, 323,307.78 and 73,355

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Solution

The fourth proportional to 215,520.65, 323,307.78 and 73,355 is: 110,041.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,520.65 : 323,307.78 = 73,355 : x
  2. Step 2: Convert to fraction form
    215,520.65/323,307.78 = 73,355/x
  3. Step 3: Cross multiply
    215,520.65x = 323,307.78 × 73,355
  4. Step 4: Simplify right side
    215,520.65x = 23,716,241,835.13
  5. Step 5: Solve for x
    x = 23,716,241,835.13/215,520.65
  6. Step 6: Final answer
    x = 110,041.62

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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.