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Finding the Fourth Proportional to 242,803.63, 334,917.66 and 156,729.47

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Solution

The fourth proportional to 242,803.63, 334,917.66 and 156,729.47 is: 216,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,803.63 : 334,917.66 = 156,729.47 : x
  2. Step 2: Convert to fraction form
    242,803.63/334,917.66 = 156,729.47/x
  3. Step 3: Cross multiply
    242,803.63x = 334,917.66 × 156,729.47
  4. Step 4: Simplify right side
    242,803.63x = 52,491,465,817.79
  5. Step 5: Solve for x
    x = 52,491,465,817.79/242,803.63
  6. Step 6: Final answer
    x = 216,188.96

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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.