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Finding the Fourth Proportional to 330,620.74, 456,251.56 and 185,426.49

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Solution

The fourth proportional to 330,620.74, 456,251.56 and 185,426.49 is: 255,885.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,620.74 : 456,251.56 = 185,426.49 : x
  2. Step 2: Convert to fraction form
    330,620.74/456,251.56 = 185,426.49/x
  3. Step 3: Cross multiply
    330,620.74x = 456,251.56 × 185,426.49
  4. Step 4: Simplify right side
    330,620.74x = 84,601,125,813.51
  5. Step 5: Solve for x
    x = 84,601,125,813.51/330,620.74
  6. Step 6: Final answer
    x = 255,885.72

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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.