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Finding the Fourth Proportional to 645,603, 968,560.02 and 202,371

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Solution

The fourth proportional to 645,603, 968,560.02 and 202,371 is: 303,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,603 : 968,560.02 = 202,371 : x
  2. Step 2: Convert to fraction form
    645,603/968,560.02 = 202,371/x
  3. Step 3: Cross multiply
    645,603x = 968,560.02 × 202,371
  4. Step 4: Simplify right side
    645,603x = 196,008,459,807.42
  5. Step 5: Solve for x
    x = 196,008,459,807.42/645,603
  6. Step 6: Final answer
    x = 303,605.25

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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.