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Finding the Fourth Proportional to 272,609.70, 376,236.70 and 156,368.52

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Solution

The fourth proportional to 272,609.70, 376,236.70 and 156,368.52 is: 215,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,609.70 : 376,236.70 = 156,368.52 : x
  2. Step 2: Convert to fraction form
    272,609.70/376,236.70 = 156,368.52/x
  3. Step 3: Cross multiply
    272,609.70x = 376,236.70 × 156,368.52
  4. Step 4: Simplify right side
    272,609.70x = 58,831,575,557.76
  5. Step 5: Solve for x
    x = 58,831,575,557.76/272,609.70
  6. Step 6: Final answer
    x = 215,808.81

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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.