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Finding the Fourth Proportional to 289,874.46, 400,030.89 and 175,137.18

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Solution

The fourth proportional to 289,874.46, 400,030.89 and 175,137.18 is: 241,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,874.46 : 400,030.89 = 175,137.18 : x
  2. Step 2: Convert to fraction form
    289,874.46/400,030.89 = 175,137.18/x
  3. Step 3: Cross multiply
    289,874.46x = 400,030.89 × 175,137.18
  4. Step 4: Simplify right side
    289,874.46x = 70,060,281,987.49
  5. Step 5: Solve for x
    x = 70,060,281,987.49/289,874.46
  6. Step 6: Final answer
    x = 241,691.81

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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.