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Finding the Fourth Proportional to 543,294.90, 814,905.90 and 143,927.10

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Solution

The fourth proportional to 543,294.90, 814,905.90 and 143,927.10 is: 215,880.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,294.90 : 814,905.90 = 143,927.10 : x
  2. Step 2: Convert to fraction form
    543,294.90/814,905.90 = 143,927.10/x
  3. Step 3: Cross multiply
    543,294.90x = 814,905.90 × 143,927.10
  4. Step 4: Simplify right side
    543,294.90x = 117,287,042,959.89
  5. Step 5: Solve for x
    x = 117,287,042,959.89/543,294.90
  6. Step 6: Final answer
    x = 215,880.99

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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.