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Finding the Fourth Proportional to 320,689.71, 480,887.33 and 92,933.55

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Solution

The fourth proportional to 320,689.71, 480,887.33 and 92,933.55 is: 139,357.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,689.71 : 480,887.33 = 92,933.55 : x
  2. Step 2: Convert to fraction form
    320,689.71/480,887.33 = 92,933.55/x
  3. Step 3: Cross multiply
    320,689.71x = 480,887.33 × 92,933.55
  4. Step 4: Simplify right side
    320,689.71x = 44,690,566,262.25
  5. Step 5: Solve for x
    x = 44,690,566,262.25/320,689.71
  6. Step 6: Final answer
    x = 139,357.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.