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Finding the Fourth Proportional to 219,213.58, 328,829.94 and 69,464.91

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Solution

The fourth proportional to 219,213.58, 328,829.94 and 69,464.91 is: 104,200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,213.58 : 328,829.94 = 69,464.91 : x
  2. Step 2: Convert to fraction form
    219,213.58/328,829.94 = 69,464.91/x
  3. Step 3: Cross multiply
    219,213.58x = 328,829.94 × 69,464.91
  4. Step 4: Simplify right side
    219,213.58x = 22,842,140,369.59
  5. Step 5: Solve for x
    x = 22,842,140,369.59/219,213.58
  6. Step 6: Final answer
    x = 104,200.39

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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.