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Finding the Fourth Proportional to 352,478.55, 486,418.86 and 191,332.29

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Solution

The fourth proportional to 352,478.55, 486,418.86 and 191,332.29 is: 264,037.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,478.55 : 486,418.86 = 191,332.29 : x
  2. Step 2: Convert to fraction form
    352,478.55/486,418.86 = 191,332.29/x
  3. Step 3: Cross multiply
    352,478.55x = 486,418.86 × 191,332.29
  4. Step 4: Simplify right side
    352,478.55x = 93,067,634,382.99
  5. Step 5: Solve for x
    x = 93,067,634,382.99/352,478.55
  6. Step 6: Final answer
    x = 264,037.72

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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.