Home / 330,021.62-455,426.17-184,828.71

Finding the Fourth Proportional to 330,021.62, 455,426.17 and 184,828.71

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Solution

The fourth proportional to 330,021.62, 455,426.17 and 184,828.71 is: 255,061.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,021.62 : 455,426.17 = 184,828.71 : x
  2. Step 2: Convert to fraction form
    330,021.62/455,426.17 = 184,828.71/x
  3. Step 3: Cross multiply
    330,021.62x = 455,426.17 × 184,828.71
  4. Step 4: Simplify right side
    330,021.62x = 84,175,831,039.27
  5. Step 5: Solve for x
    x = 84,175,831,039.27/330,021.62
  6. Step 6: Final answer
    x = 255,061.57

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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.