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Finding the Fourth Proportional to 323,887.16, 446,625.14 and 278,718.32

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Solution

The fourth proportional to 323,887.16, 446,625.14 and 278,718.32 is: 384,339.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,887.16 : 446,625.14 = 278,718.32 : x
  2. Step 2: Convert to fraction form
    323,887.16/446,625.14 = 278,718.32/x
  3. Step 3: Cross multiply
    323,887.16x = 446,625.14 × 278,718.32
  4. Step 4: Simplify right side
    323,887.16x = 124,482,608,690.57
  5. Step 5: Solve for x
    x = 124,482,608,690.57/323,887.16
  6. Step 6: Final answer
    x = 384,339.44

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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.