Home / 219,436.29-329,165.78-69,688.35

Finding the Fourth Proportional to 219,436.29, 329,165.78 and 69,688.35

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Solution

The fourth proportional to 219,436.29, 329,165.78 and 69,688.35 is: 104,536.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,436.29 : 329,165.78 = 69,688.35 : x
  2. Step 2: Convert to fraction form
    219,436.29/329,165.78 = 69,688.35/x
  3. Step 3: Cross multiply
    219,436.29x = 329,165.78 × 69,688.35
  4. Step 4: Simplify right side
    219,436.29x = 22,939,019,736.22
  5. Step 5: Solve for x
    x = 22,939,019,736.22/219,436.29
  6. Step 6: Final answer
    x = 104,536.13

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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.