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Finding the Fourth Proportional to 272,812.42, 376,492.85 and 151,953.76

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Solution

The fourth proportional to 272,812.42, 376,492.85 and 151,953.76 is: 209,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,812.42 : 376,492.85 = 151,953.76 : x
  2. Step 2: Convert to fraction form
    272,812.42/376,492.85 = 151,953.76/x
  3. Step 3: Cross multiply
    272,812.42x = 376,492.85 × 151,953.76
  4. Step 4: Simplify right side
    272,812.42x = 57,209,504,170.62
  5. Step 5: Solve for x
    x = 57,209,504,170.62/272,812.42
  6. Step 6: Final answer
    x = 209,702.71

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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.