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Finding the Fourth Proportional to 227,814.60, 342,002.70 and 143,574.60

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Solution

The fourth proportional to 227,814.60, 342,002.70 and 143,574.60 is: 215,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,814.60 : 342,002.70 = 143,574.60 : x
  2. Step 2: Convert to fraction form
    227,814.60/342,002.70 = 143,574.60/x
  3. Step 3: Cross multiply
    227,814.60x = 342,002.70 × 143,574.60
  4. Step 4: Simplify right side
    227,814.60x = 49,102,900,851.42
  5. Step 5: Solve for x
    x = 49,102,900,851.42/227,814.60
  6. Step 6: Final answer
    x = 215,538.87

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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.