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Finding the Fourth Proportional to 318,869, 440,059.18 and 175,629

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Solution

The fourth proportional to 318,869, 440,059.18 and 175,629 is: 242,379.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,869 : 440,059.18 = 175,629 : x
  2. Step 2: Convert to fraction form
    318,869/440,059.18 = 175,629/x
  3. Step 3: Cross multiply
    318,869x = 440,059.18 × 175,629
  4. Step 4: Simplify right side
    318,869x = 77,287,153,724.22
  5. Step 5: Solve for x
    x = 77,287,153,724.22/318,869
  6. Step 6: Final answer
    x = 242,379.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.