Home / 217,418.79-325,506.09-147,172.35

Finding the Fourth Proportional to 217,418.79, 325,506.09 and 147,172.35

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Solution

The fourth proportional to 217,418.79, 325,506.09 and 147,172.35 is: 220,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,418.79 : 325,506.09 = 147,172.35 : x
  2. Step 2: Convert to fraction form
    217,418.79/325,506.09 = 147,172.35/x
  3. Step 3: Cross multiply
    217,418.79x = 325,506.09 × 147,172.35
  4. Step 4: Simplify right side
    217,418.79x = 47,905,496,204.61
  5. Step 5: Solve for x
    x = 47,905,496,204.61/217,418.79
  6. Step 6: Final answer
    x = 220,337.42

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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.