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Finding the Fourth Proportional to 215,269.03, 322,972.74 and 65,538.31

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Solution

The fourth proportional to 215,269.03, 322,972.74 and 65,538.31 is: 98,328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,269.03 : 322,972.74 = 65,538.31 : x
  2. Step 2: Convert to fraction form
    215,269.03/322,972.74 = 65,538.31/x
  3. Step 3: Cross multiply
    215,269.03x = 322,972.74 × 65,538.31
  4. Step 4: Simplify right side
    215,269.03x = 21,167,085,613.11
  5. Step 5: Solve for x
    x = 21,167,085,613.11/215,269.03
  6. Step 6: Final answer
    x = 98,328.52

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1.5x scale

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.