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Finding the Fourth Proportional to 215,483.67, 323,000.82 and 120,574.71

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Solution

The fourth proportional to 215,483.67, 323,000.82 and 120,574.71 is: 180,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,483.67 : 323,000.82 = 120,574.71 : x
  2. Step 2: Convert to fraction form
    215,483.67/323,000.82 = 120,574.71/x
  3. Step 3: Cross multiply
    215,483.67x = 323,000.82 × 120,574.71
  4. Step 4: Simplify right side
    215,483.67x = 38,945,730,201.26
  5. Step 5: Solve for x
    x = 38,945,730,201.26/215,483.67
  6. Step 6: Final answer
    x = 180,736.34

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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.