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Finding the Fourth Proportional to 354,880.40, 490,269.12 and 232,663.16

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Solution

The fourth proportional to 354,880.40, 490,269.12 and 232,663.16 is: 321,425.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,880.40 : 490,269.12 = 232,663.16 : x
  2. Step 2: Convert to fraction form
    354,880.40/490,269.12 = 232,663.16/x
  3. Step 3: Cross multiply
    354,880.40x = 490,269.12 × 232,663.16
  4. Step 4: Simplify right side
    354,880.40x = 114,067,562,709.62
  5. Step 5: Solve for x
    x = 114,067,562,709.62/354,880.40
  6. Step 6: Final answer
    x = 321,425.37

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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.