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Finding the Fourth Proportional to 612,216.75, 918,332.81 and 162,934.85

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Solution

The fourth proportional to 612,216.75, 918,332.81 and 162,934.85 is: 244,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,216.75 : 918,332.81 = 162,934.85 : x
  2. Step 2: Convert to fraction form
    612,216.75/918,332.81 = 162,934.85/x
  3. Step 3: Cross multiply
    612,216.75x = 918,332.81 × 162,934.85
  4. Step 4: Simplify right side
    612,216.75x = 149,628,413,241.09
  5. Step 5: Solve for x
    x = 149,628,413,241.09/612,216.75
  6. Step 6: Final answer
    x = 244,404.31

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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.