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Finding the Fourth Proportional to 480,171.54, 720,709.38 and 243,683.94

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Solution

The fourth proportional to 480,171.54, 720,709.38 and 243,683.94 is: 365,755.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,171.54 : 720,709.38 = 243,683.94 : x
  2. Step 2: Convert to fraction form
    480,171.54/720,709.38 = 243,683.94/x
  3. Step 3: Cross multiply
    480,171.54x = 720,709.38 × 243,683.94
  4. Step 4: Simplify right side
    480,171.54x = 175,625,301,313.36
  5. Step 5: Solve for x
    x = 175,625,301,313.36/480,171.54
  6. Step 6: Final answer
    x = 365,755.33

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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.