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Finding the Fourth Proportional to 323,405.28, 446,279.85 and 180,139.77

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Solution

The fourth proportional to 323,405.28, 446,279.85 and 180,139.77 is: 248,582.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,405.28 : 446,279.85 = 180,139.77 : x
  2. Step 2: Convert to fraction form
    323,405.28/446,279.85 = 180,139.77/x
  3. Step 3: Cross multiply
    323,405.28x = 446,279.85 × 180,139.77
  4. Step 4: Simplify right side
    323,405.28x = 80,392,749,534.63
  5. Step 5: Solve for x
    x = 80,392,749,534.63/323,405.28
  6. Step 6: Final answer
    x = 248,582.06

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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.