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Finding the Fourth Proportional to 351,633.90, 485,256.06 and 190,488.57

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Solution

The fourth proportional to 351,633.90, 485,256.06 and 190,488.57 is: 262,874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,633.90 : 485,256.06 = 190,488.57 : x
  2. Step 2: Convert to fraction form
    351,633.90/485,256.06 = 190,488.57/x
  3. Step 3: Cross multiply
    351,633.90x = 485,256.06 × 190,488.57
  4. Step 4: Simplify right side
    351,633.90x = 92,435,732,953.23
  5. Step 5: Solve for x
    x = 92,435,732,953.23/351,633.90
  6. Step 6: Final answer
    x = 262,874.92

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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.