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Finding the Fourth Proportional to 446,134.60, 668,813.10 and 268,712.20

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Solution

The fourth proportional to 446,134.60, 668,813.10 and 268,712.20 is: 402,834.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,134.60 : 668,813.10 = 268,712.20 : x
  2. Step 2: Convert to fraction form
    446,134.60/668,813.10 = 268,712.20/x
  3. Step 3: Cross multiply
    446,134.60x = 668,813.10 × 268,712.20
  4. Step 4: Simplify right side
    446,134.60x = 179,718,239,489.82
  5. Step 5: Solve for x
    x = 179,718,239,489.82/446,134.60
  6. Step 6: Final answer
    x = 402,834.12

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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.