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Finding the Fourth Proportional to 156,936, 235,404 and 40,200

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Solution

The fourth proportional to 156,936, 235,404 and 40,200 is: 60,300

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,936 : 235,404 = 40,200 : x
  2. Step 2: Convert to fraction form
    156,936/235,404 = 40,200/x
  3. Step 3: Cross multiply
    156,936x = 235,404 × 40,200
  4. Step 4: Simplify right side
    156,936x = 9,463,240,800
  5. Step 5: Solve for x
    x = 9,463,240,800/156,936
  6. Step 6: Final answer
    x = 60,300

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.