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Finding the Fourth Proportional to 219,236.93, 328,864.55 and 69,473.91

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Solution

The fourth proportional to 219,236.93, 328,864.55 and 69,473.91 is: 104,213.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,236.93 : 328,864.55 = 69,473.91 : x
  2. Step 2: Convert to fraction form
    219,236.93/328,864.55 = 69,473.91/x
  3. Step 3: Cross multiply
    219,236.93x = 328,864.55 × 69,473.91
  4. Step 4: Simplify right side
    219,236.93x = 22,847,505,801.52
  5. Step 5: Solve for x
    x = 22,847,505,801.52/219,236.93
  6. Step 6: Final answer
    x = 104,213.76

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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.