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Finding the Fourth Proportional to 554,775.64, 831,664.08 and 199,540

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Solution

The fourth proportional to 554,775.64, 831,664.08 and 199,540 is: 299,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,775.64 : 831,664.08 = 199,540 : x
  2. Step 2: Convert to fraction form
    554,775.64/831,664.08 = 199,540/x
  3. Step 3: Cross multiply
    554,775.64x = 831,664.08 × 199,540
  4. Step 4: Simplify right side
    554,775.64x = 165,950,250,523.20
  5. Step 5: Solve for x
    x = 165,950,250,523.20/554,775.64
  6. Step 6: Final answer
    x = 299,130.38

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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.