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Finding the Fourth Proportional to 219,018.16, 328,559.60 and 69,224.48

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Solution

The fourth proportional to 219,018.16, 328,559.60 and 69,224.48 is: 103,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,018.16 : 328,559.60 = 69,224.48 : x
  2. Step 2: Convert to fraction form
    219,018.16/328,559.60 = 69,224.48/x
  3. Step 3: Cross multiply
    219,018.16x = 328,559.60 × 69,224.48
  4. Step 4: Simplify right side
    219,018.16x = 22,744,367,459.01
  5. Step 5: Solve for x
    x = 22,744,367,459.01/219,018.16
  6. Step 6: Final answer
    x = 103,846.95

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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.