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Finding the Fourth Proportional to 178,988.70, 246,749.94 and 142,369.14

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Solution

The fourth proportional to 178,988.70, 246,749.94 and 142,369.14 is: 196,267.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,988.70 : 246,749.94 = 142,369.14 : x
  2. Step 2: Convert to fraction form
    178,988.70/246,749.94 = 142,369.14/x
  3. Step 3: Cross multiply
    178,988.70x = 246,749.94 × 142,369.14
  4. Step 4: Simplify right side
    178,988.70x = 35,129,576,752.85
  5. Step 5: Solve for x
    x = 35,129,576,752.85/178,988.70
  6. Step 6: Final answer
    x = 196,267.01

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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.