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Finding the Fourth Proportional to 201,352.48, 301,988.40 and 191,360.80

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Solution

The fourth proportional to 201,352.48, 301,988.40 and 191,360.80 is: 287,002.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,352.48 : 301,988.40 = 191,360.80 : x
  2. Step 2: Convert to fraction form
    201,352.48/301,988.40 = 191,360.80/x
  3. Step 3: Cross multiply
    201,352.48x = 301,988.40 × 191,360.80
  4. Step 4: Simplify right side
    201,352.48x = 57,788,741,814.72
  5. Step 5: Solve for x
    x = 57,788,741,814.72/201,352.48
  6. Step 6: Final answer
    x = 287,002.88

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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.