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Finding the Fourth Proportional to 267,220.20, 400,830.30 and 127,252.20

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Solution

The fourth proportional to 267,220.20, 400,830.30 and 127,252.20 is: 190,878.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,220.20 : 400,830.30 = 127,252.20 : x
  2. Step 2: Convert to fraction form
    267,220.20/400,830.30 = 127,252.20/x
  3. Step 3: Cross multiply
    267,220.20x = 400,830.30 × 127,252.20
  4. Step 4: Simplify right side
    267,220.20x = 51,006,537,501.66
  5. Step 5: Solve for x
    x = 51,006,537,501.66/267,220.20
  6. Step 6: Final answer
    x = 190,878.30

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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.