Home / 219,439.57-329,254.43-77,386.34

Finding the Fourth Proportional to 219,439.57, 329,254.43 and 77,386.34

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Solution

The fourth proportional to 219,439.57, 329,254.43 and 77,386.34 is: 116,113.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,439.57 : 329,254.43 = 77,386.34 : x
  2. Step 2: Convert to fraction form
    219,439.57/329,254.43 = 77,386.34/x
  3. Step 3: Cross multiply
    219,439.57x = 329,254.43 × 77,386.34
  4. Step 4: Simplify right side
    219,439.57x = 25,479,795,266.49
  5. Step 5: Solve for x
    x = 25,479,795,266.49/219,439.57
  6. Step 6: Final answer
    x = 116,113.04

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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.