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Finding the Fourth Proportional to 219,376.53, 329,114.01 and 69,621.72

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Solution

The fourth proportional to 219,376.53, 329,114.01 and 69,621.72 is: 104,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,376.53 : 329,114.01 = 69,621.72 : x
  2. Step 2: Convert to fraction form
    219,376.53/329,114.01 = 69,621.72/x
  3. Step 3: Cross multiply
    219,376.53x = 329,114.01 × 69,621.72
  4. Step 4: Simplify right side
    219,376.53x = 22,913,483,452.30
  5. Step 5: Solve for x
    x = 22,913,483,452.30/219,376.53
  6. Step 6: Final answer
    x = 104,448.20

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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.