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Finding the Fourth Proportional to 330,172.94, 455,640.47 and 179,269.94

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Solution

The fourth proportional to 330,172.94, 455,640.47 and 179,269.94 is: 247,393.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,172.94 : 455,640.47 = 179,269.94 : x
  2. Step 2: Convert to fraction form
    330,172.94/455,640.47 = 179,269.94/x
  3. Step 3: Cross multiply
    330,172.94x = 455,640.47 × 179,269.94
  4. Step 4: Simplify right side
    330,172.94x = 81,682,636,543.92
  5. Step 5: Solve for x
    x = 81,682,636,543.92/330,172.94
  6. Step 6: Final answer
    x = 247,393.50

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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.