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Finding the Fourth Proportional to 346,758.86, 520,288.55 and 122,279.69

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Solution

The fourth proportional to 346,758.86, 520,288.55 and 122,279.69 is: 183,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,758.86 : 520,288.55 = 122,279.69 : x
  2. Step 2: Convert to fraction form
    346,758.86/520,288.55 = 122,279.69/x
  3. Step 3: Cross multiply
    346,758.86x = 520,288.55 × 122,279.69
  4. Step 4: Simplify right side
    346,758.86x = 63,620,722,604.55
  5. Step 5: Solve for x
    x = 63,620,722,604.55/346,758.86
  6. Step 6: Final answer
    x = 183,472.52

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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.