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Finding the Fourth Proportional to 576,108.80, 864,163.20 and 155,384.60

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Solution

The fourth proportional to 576,108.80, 864,163.20 and 155,384.60 is: 233,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,108.80 : 864,163.20 = 155,384.60 : x
  2. Step 2: Convert to fraction form
    576,108.80/864,163.20 = 155,384.60/x
  3. Step 3: Cross multiply
    576,108.80x = 864,163.20 × 155,384.60
  4. Step 4: Simplify right side
    576,108.80x = 134,277,653,166.72
  5. Step 5: Solve for x
    x = 134,277,653,166.72/576,108.80
  6. Step 6: Final answer
    x = 233,076.90

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Similar ratio
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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.