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Finding the Fourth Proportional to 201,650.40, 302,475.60 and 127,000.80

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Solution

The fourth proportional to 201,650.40, 302,475.60 and 127,000.80 is: 190,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,650.40 : 302,475.60 = 127,000.80 : x
  2. Step 2: Convert to fraction form
    201,650.40/302,475.60 = 127,000.80/x
  3. Step 3: Cross multiply
    201,650.40x = 302,475.60 × 127,000.80
  4. Step 4: Simplify right side
    201,650.40x = 38,414,643,180.48
  5. Step 5: Solve for x
    x = 38,414,643,180.48/201,650.40
  6. Step 6: Final answer
    x = 190,501.20

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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.