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Finding the Fourth Proportional to 330,162.58, 454,808.20 and 281,606.32

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Solution

The fourth proportional to 330,162.58, 454,808.20 and 281,606.32 is: 387,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,162.58 : 454,808.20 = 281,606.32 : x
  2. Step 2: Convert to fraction form
    330,162.58/454,808.20 = 281,606.32/x
  3. Step 3: Cross multiply
    330,162.58x = 454,808.20 × 281,606.32
  4. Step 4: Simplify right side
    330,162.58x = 128,076,859,825.75
  5. Step 5: Solve for x
    x = 128,076,859,825.75/330,162.58
  6. Step 6: Final answer
    x = 387,920.59

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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.