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Finding the Fourth Proportional to 226,421.38, 312,464.34 and 124,457.98

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Solution

The fourth proportional to 226,421.38, 312,464.34 and 124,457.98 is: 171,753.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,421.38 : 312,464.34 = 124,457.98 : x
  2. Step 2: Convert to fraction form
    226,421.38/312,464.34 = 124,457.98/x
  3. Step 3: Cross multiply
    226,421.38x = 312,464.34 × 124,457.98
  4. Step 4: Simplify right side
    226,421.38x = 38,888,680,578.43
  5. Step 5: Solve for x
    x = 38,888,680,578.43/226,421.38
  6. Step 6: Final answer
    x = 171,753.57

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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.