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Finding the Fourth Proportional to 215,358.34, 323,083.66 and 65,610.68

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Solution

The fourth proportional to 215,358.34, 323,083.66 and 65,610.68 is: 98,430.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,358.34 : 323,083.66 = 65,610.68 : x
  2. Step 2: Convert to fraction form
    215,358.34/323,083.66 = 65,610.68/x
  3. Step 3: Cross multiply
    215,358.34x = 323,083.66 × 65,610.68
  4. Step 4: Simplify right side
    215,358.34x = 21,197,738,629.49
  5. Step 5: Solve for x
    x = 21,197,738,629.49/215,358.34
  6. Step 6: Final answer
    x = 98,430.08

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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.