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Finding the Fourth Proportional to 342,279.63, 472,201.25 and 229,138.83

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Solution

The fourth proportional to 342,279.63, 472,201.25 and 229,138.83 is: 316,114.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,279.63 : 472,201.25 = 229,138.83 : x
  2. Step 2: Convert to fraction form
    342,279.63/472,201.25 = 229,138.83/x
  3. Step 3: Cross multiply
    342,279.63x = 472,201.25 × 229,138.83
  4. Step 4: Simplify right side
    342,279.63x = 108,199,640,322.00
  5. Step 5: Solve for x
    x = 108,199,640,322.00/342,279.63
  6. Step 6: Final answer
    x = 316,114.76

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1.5x scale

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.