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Finding the Fourth Proportional to 342,279.94, 472,201.68 and 229,139.14

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Solution

The fourth proportional to 342,279.94, 472,201.68 and 229,139.14 is: 316,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,279.94 : 472,201.68 = 229,139.14 : x
  2. Step 2: Convert to fraction form
    342,279.94/472,201.68 = 229,139.14/x
  3. Step 3: Cross multiply
    342,279.94x = 472,201.68 × 229,139.14
  4. Step 4: Simplify right side
    342,279.94x = 108,199,886,861.76
  5. Step 5: Solve for x
    x = 108,199,886,861.76/342,279.94
  6. Step 6: Final answer
    x = 316,115.19

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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.