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Finding the Fourth Proportional to 272,614.82, 376,243.80 and 156,373.72

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Solution

The fourth proportional to 272,614.82, 376,243.80 and 156,373.72 is: 215,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,614.82 : 376,243.80 = 156,373.72 : x
  2. Step 2: Convert to fraction form
    272,614.82/376,243.80 = 156,373.72/x
  3. Step 3: Cross multiply
    272,614.82x = 376,243.80 × 156,373.72
  4. Step 4: Simplify right side
    272,614.82x = 58,834,642,632.94
  5. Step 5: Solve for x
    x = 58,834,642,632.94/272,614.82
  6. Step 6: Final answer
    x = 215,816.01

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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.