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Finding the Fourth Proportional to 219,395.79, 329,134.54 and 69,595.71

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Solution

The fourth proportional to 219,395.79, 329,134.54 and 69,595.71 is: 104,406.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,395.79 : 329,134.54 = 69,595.71 : x
  2. Step 2: Convert to fraction form
    219,395.79/329,134.54 = 69,595.71/x
  3. Step 3: Cross multiply
    219,395.79x = 329,134.54 × 69,595.71
  4. Step 4: Simplify right side
    219,395.79x = 22,906,350,719.07
  5. Step 5: Solve for x
    x = 22,906,350,719.07/219,395.79
  6. Step 6: Final answer
    x = 104,406.52

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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.