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Finding the Fourth Proportional to 617,286.37, 926,040.12 and 218,158.87

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Solution

The fourth proportional to 617,286.37, 926,040.12 and 218,158.87 is: 327,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,286.37 : 926,040.12 = 218,158.87 : x
  2. Step 2: Convert to fraction form
    617,286.37/926,040.12 = 218,158.87/x
  3. Step 3: Cross multiply
    617,286.37x = 926,040.12 × 218,158.87
  4. Step 4: Simplify right side
    617,286.37x = 202,023,866,153.86
  5. Step 5: Solve for x
    x = 202,023,866,153.86/617,286.37
  6. Step 6: Final answer
    x = 327,277.38

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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.