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Finding the Fourth Proportional to 216,009.38, 323,985.63 and 64,203.22

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Solution

The fourth proportional to 216,009.38, 323,985.63 and 64,203.22 is: 96,296.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,009.38 : 323,985.63 = 64,203.22 : x
  2. Step 2: Convert to fraction form
    216,009.38/323,985.63 = 64,203.22/x
  3. Step 3: Cross multiply
    216,009.38x = 323,985.63 × 64,203.22
  4. Step 4: Simplify right side
    216,009.38x = 20,800,920,350.73
  5. Step 5: Solve for x
    x = 20,800,920,350.73/216,009.38
  6. Step 6: Final answer
    x = 96,296.37

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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.