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Finding the Fourth Proportional to 215,345.72, 323,035.14 and 65,598.68

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Solution

The fourth proportional to 215,345.72, 323,035.14 and 65,598.68 is: 98,403.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,345.72 : 323,035.14 = 65,598.68 : x
  2. Step 2: Convert to fraction form
    215,345.72/323,035.14 = 65,598.68/x
  3. Step 3: Cross multiply
    215,345.72x = 323,035.14 × 65,598.68
  4. Step 4: Simplify right side
    215,345.72x = 21,190,678,777.62
  5. Step 5: Solve for x
    x = 21,190,678,777.62/215,345.72
  6. Step 6: Final answer
    x = 98,403.06

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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.