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Finding the Fourth Proportional to 330,637.41, 456,363.32 and 203,426.91

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Solution

The fourth proportional to 330,637.41, 456,363.32 and 203,426.91 is: 280,780.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,637.41 : 456,363.32 = 203,426.91 : x
  2. Step 2: Convert to fraction form
    330,637.41/456,363.32 = 203,426.91/x
  3. Step 3: Cross multiply
    330,637.41x = 456,363.32 × 203,426.91
  4. Step 4: Simplify right side
    330,637.41x = 92,836,579,007.81
  5. Step 5: Solve for x
    x = 92,836,579,007.81/330,637.41
  6. Step 6: Final answer
    x = 280,780.63

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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.