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Finding the Fourth Proportional to 215,129.00, 322,693.34 and 65,368.68

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Solution

The fourth proportional to 215,129.00, 322,693.34 and 65,368.68 is: 98,052.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,129.00 : 322,693.34 = 65,368.68 : x
  2. Step 2: Convert to fraction form
    215,129.00/322,693.34 = 65,368.68/x
  3. Step 3: Cross multiply
    215,129.00x = 322,693.34 × 65,368.68
  4. Step 4: Simplify right side
    215,129.00x = 21,094,037,353.75
  5. Step 5: Solve for x
    x = 21,094,037,353.75/215,129.00
  6. Step 6: Final answer
    x = 98,052.97

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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.