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Finding the Fourth Proportional to 540,269.66, 810,439.05 and 207,845.66

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Solution

The fourth proportional to 540,269.66, 810,439.05 and 207,845.66 is: 311,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,269.66 : 810,439.05 = 207,845.66 : x
  2. Step 2: Convert to fraction form
    540,269.66/810,439.05 = 207,845.66/x
  3. Step 3: Cross multiply
    540,269.66x = 810,439.05 × 207,845.66
  4. Step 4: Simplify right side
    540,269.66x = 168,446,239,237.02
  5. Step 5: Solve for x
    x = 168,446,239,237.02/540,269.66
  6. Step 6: Final answer
    x = 311,781.79

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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.