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Finding the Fourth Proportional to 628,383.60, 942,532.20 and 201,913.20

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Solution

The fourth proportional to 628,383.60, 942,532.20 and 201,913.20 is: 302,855.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,383.60 : 942,532.20 = 201,913.20 : x
  2. Step 2: Convert to fraction form
    628,383.60/942,532.20 = 201,913.20/x
  3. Step 3: Cross multiply
    628,383.60x = 942,532.20 × 201,913.20
  4. Step 4: Simplify right side
    628,383.60x = 190,309,692,605.04
  5. Step 5: Solve for x
    x = 190,309,692,605.04/628,383.60
  6. Step 6: Final answer
    x = 302,855.92

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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.