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Finding the Fourth Proportional to 498,341.33, 747,485.87 and 143,341.41

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Solution

The fourth proportional to 498,341.33, 747,485.87 and 143,341.41 is: 215,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,341.33 : 747,485.87 = 143,341.41 : x
  2. Step 2: Convert to fraction form
    498,341.33/747,485.87 = 143,341.41/x
  3. Step 3: Cross multiply
    498,341.33x = 747,485.87 × 143,341.41
  4. Step 4: Simplify right side
    498,341.33x = 107,145,677,844.17
  5. Step 5: Solve for x
    x = 107,145,677,844.17/498,341.33
  6. Step 6: Final answer
    x = 215,004.60

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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.