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Finding the Fourth Proportional to 330,402.82, 455,983.79 and 185,206.29

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Solution

The fourth proportional to 330,402.82, 455,983.79 and 185,206.29 is: 255,600.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,402.82 : 455,983.79 = 185,206.29 : x
  2. Step 2: Convert to fraction form
    330,402.82/455,983.79 = 185,206.29/x
  3. Step 3: Cross multiply
    330,402.82x = 455,983.79 × 185,206.29
  4. Step 4: Simplify right side
    330,402.82x = 84,451,066,046.04
  5. Step 5: Solve for x
    x = 84,451,066,046.04/330,402.82
  6. Step 6: Final answer
    x = 255,600.32

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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.