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Finding the Fourth Proportional to 499,334.18, 748,804.29 and 215,046.05

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Solution

The fourth proportional to 499,334.18, 748,804.29 and 215,046.05 is: 322,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,334.18 : 748,804.29 = 215,046.05 : x
  2. Step 2: Convert to fraction form
    499,334.18/748,804.29 = 215,046.05/x
  3. Step 3: Cross multiply
    499,334.18x = 748,804.29 × 215,046.05
  4. Step 4: Simplify right side
    499,334.18x = 161,027,401,043.53
  5. Step 5: Solve for x
    x = 161,027,401,043.53/499,334.18
  6. Step 6: Final answer
    x = 322,484.24

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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.