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Finding the Fourth Proportional to 215,303.33, 323,001.66 and 65,539.70

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Solution

The fourth proportional to 215,303.33, 323,001.66 and 65,539.70 is: 98,323.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,303.33 : 323,001.66 = 65,539.70 : x
  2. Step 2: Convert to fraction form
    215,303.33/323,001.66 = 65,539.70/x
  3. Step 3: Cross multiply
    215,303.33x = 323,001.66 × 65,539.70
  4. Step 4: Simplify right side
    215,303.33x = 21,169,431,895.90
  5. Step 5: Solve for x
    x = 21,169,431,895.90/215,303.33
  6. Step 6: Final answer
    x = 98,323.76

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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.