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Finding the Fourth Proportional to 320,880.68, 442,797.77 and 175,658.37

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Solution

The fourth proportional to 320,880.68, 442,797.77 and 175,658.37 is: 242,398.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,880.68 : 442,797.77 = 175,658.37 : x
  2. Step 2: Convert to fraction form
    320,880.68/442,797.77 = 175,658.37/x
  3. Step 3: Cross multiply
    320,880.68x = 442,797.77 × 175,658.37
  4. Step 4: Simplify right side
    320,880.68x = 77,781,134,956.98
  5. Step 5: Solve for x
    x = 77,781,134,956.98/320,880.68
  6. Step 6: Final answer
    x = 242,398.94

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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.