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Finding the Fourth Proportional to 351,874.52, 485,587.88 and 190,730.21

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Solution

The fourth proportional to 351,874.52, 485,587.88 and 190,730.21 is: 263,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,874.52 : 485,587.88 = 190,730.21 : x
  2. Step 2: Convert to fraction form
    351,874.52/485,587.88 = 190,730.21/x
  3. Step 3: Cross multiply
    351,874.52x = 485,587.88 × 190,730.21
  4. Step 4: Simplify right side
    351,874.52x = 92,616,278,325.85
  5. Step 5: Solve for x
    x = 92,616,278,325.85/351,874.52
  6. Step 6: Final answer
    x = 263,208.25

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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.