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Finding the Fourth Proportional to 200,418.30, 300,627.45 and 124,310.70

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Solution

The fourth proportional to 200,418.30, 300,627.45 and 124,310.70 is: 186,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,418.30 : 300,627.45 = 124,310.70 : x
  2. Step 2: Convert to fraction form
    200,418.30/300,627.45 = 124,310.70/x
  3. Step 3: Cross multiply
    200,418.30x = 300,627.45 × 124,310.70
  4. Step 4: Simplify right side
    200,418.30x = 37,371,208,748.72
  5. Step 5: Solve for x
    x = 37,371,208,748.72/200,418.30
  6. Step 6: Final answer
    x = 186,466.05

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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.