Home / 217,000.66-325,190.81-122,031.50

Finding the Fourth Proportional to 217,000.66, 325,190.81 and 122,031.50

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Solution

The fourth proportional to 217,000.66, 325,190.81 and 122,031.50 is: 182,872.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,000.66 : 325,190.81 = 122,031.50 : x
  2. Step 2: Convert to fraction form
    217,000.66/325,190.81 = 122,031.50/x
  3. Step 3: Cross multiply
    217,000.66x = 325,190.81 × 122,031.50
  4. Step 4: Simplify right side
    217,000.66x = 39,683,522,330.52
  5. Step 5: Solve for x
    x = 39,683,522,330.52/217,000.66
  6. Step 6: Final answer
    x = 182,872.82

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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.