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Finding the Fourth Proportional to 500,379.64, 750,735.54 and 163,431.32

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Solution

The fourth proportional to 500,379.64, 750,735.54 and 163,431.32 is: 245,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,379.64 : 750,735.54 = 163,431.32 : x
  2. Step 2: Convert to fraction form
    500,379.64/750,735.54 = 163,431.32/x
  3. Step 3: Cross multiply
    500,379.64x = 750,735.54 × 163,431.32
  4. Step 4: Simplify right side
    500,379.64x = 122,693,700,273.11
  5. Step 5: Solve for x
    x = 122,693,700,273.11/500,379.64
  6. Step 6: Final answer
    x = 245,201.22

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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.