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Finding the Fourth Proportional to 226,437.60, 339,688.80 and 68,678.40

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Solution

The fourth proportional to 226,437.60, 339,688.80 and 68,678.40 is: 103,027.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,437.60 : 339,688.80 = 68,678.40 : x
  2. Step 2: Convert to fraction form
    226,437.60/339,688.80 = 68,678.40/x
  3. Step 3: Cross multiply
    226,437.60x = 339,688.80 × 68,678.40
  4. Step 4: Simplify right side
    226,437.60x = 23,329,283,281.92
  5. Step 5: Solve for x
    x = 23,329,283,281.92/226,437.60
  6. Step 6: Final answer
    x = 103,027.43

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1.5x scale

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.