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Finding the Fourth Proportional to 291,279.38, 437,088.90 and 122,789.39

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Solution

The fourth proportional to 291,279.38, 437,088.90 and 122,789.39 is: 184,255.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,279.38 : 437,088.90 = 122,789.39 : x
  2. Step 2: Convert to fraction form
    291,279.38/437,088.90 = 122,789.39/x
  3. Step 3: Cross multiply
    291,279.38x = 437,088.90 × 122,789.39
  4. Step 4: Simplify right side
    291,279.38x = 53,669,879,406.77
  5. Step 5: Solve for x
    x = 53,669,879,406.77/291,279.38
  6. Step 6: Final answer
    x = 184,255.68

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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.