Home / 217,541.85-326,321.59-103,631.07

Finding the Fourth Proportional to 217,541.85, 326,321.59 and 103,631.07

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Solution

The fourth proportional to 217,541.85, 326,321.59 and 103,631.07 is: 155,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,541.85 : 326,321.59 = 103,631.07 : x
  2. Step 2: Convert to fraction form
    217,541.85/326,321.59 = 103,631.07/x
  3. Step 3: Cross multiply
    217,541.85x = 326,321.59 × 103,631.07
  4. Step 4: Simplify right side
    217,541.85x = 33,817,055,485.50
  5. Step 5: Solve for x
    x = 33,817,055,485.50/217,541.85
  6. Step 6: Final answer
    x = 155,450.80

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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.