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Finding the Fourth Proportional to 501,385.60, 751,422.30 and 201,620.80

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Solution

The fourth proportional to 501,385.60, 751,422.30 and 201,620.80 is: 302,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,385.60 : 751,422.30 = 201,620.80 : x
  2. Step 2: Convert to fraction form
    501,385.60/751,422.30 = 201,620.80/x
  3. Step 3: Cross multiply
    501,385.60x = 751,422.30 × 201,620.80
  4. Step 4: Simplify right side
    501,385.60x = 151,502,365,263.84
  5. Step 5: Solve for x
    x = 151,502,365,263.84/501,385.60
  6. Step 6: Final answer
    x = 302,167.36

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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.