Home / 217,270.20-326,051.10-98,880.60

Finding the Fourth Proportional to 217,270.20, 326,051.10 and 98,880.60

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Solution

The fourth proportional to 217,270.20, 326,051.10 and 98,880.60 is: 148,387.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,270.20 : 326,051.10 = 98,880.60 : x
  2. Step 2: Convert to fraction form
    217,270.20/326,051.10 = 98,880.60/x
  3. Step 3: Cross multiply
    217,270.20x = 326,051.10 × 98,880.60
  4. Step 4: Simplify right side
    217,270.20x = 32,240,128,398.66
  5. Step 5: Solve for x
    x = 32,240,128,398.66/217,270.20
  6. Step 6: Final answer
    x = 148,387.25

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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.