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Finding the Fourth Proportional to 295,814.40, 443,721.60 and 129,926.40

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Solution

The fourth proportional to 295,814.40, 443,721.60 and 129,926.40 is: 194,889.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,814.40 : 443,721.60 = 129,926.40 : x
  2. Step 2: Convert to fraction form
    295,814.40/443,721.60 = 129,926.40/x
  3. Step 3: Cross multiply
    295,814.40x = 443,721.60 × 129,926.40
  4. Step 4: Simplify right side
    295,814.40x = 57,651,150,090.24
  5. Step 5: Solve for x
    x = 57,651,150,090.24/295,814.40
  6. Step 6: Final answer
    x = 194,889.60

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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.