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Finding the Fourth Proportional to 617,644.10, 926,540.88 and 218,203.12

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Solution

The fourth proportional to 617,644.10, 926,540.88 and 218,203.12 is: 327,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,644.10 : 926,540.88 = 218,203.12 : x
  2. Step 2: Convert to fraction form
    617,644.10/926,540.88 = 218,203.12/x
  3. Step 3: Cross multiply
    617,644.10x = 926,540.88 × 218,203.12
  4. Step 4: Simplify right side
    617,644.10x = 202,174,110,823.55
  5. Step 5: Solve for x
    x = 202,174,110,823.55/617,644.10
  6. Step 6: Final answer
    x = 327,331.08

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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.