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Finding the Fourth Proportional to 299,307.68, 449,036.26 and 88,945.64

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Solution

The fourth proportional to 299,307.68, 449,036.26 and 88,945.64 is: 133,440.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,307.68 : 449,036.26 = 88,945.64 : x
  2. Step 2: Convert to fraction form
    299,307.68/449,036.26 = 88,945.64/x
  3. Step 3: Cross multiply
    299,307.68x = 449,036.26 × 88,945.64
  4. Step 4: Simplify right side
    299,307.68x = 39,939,817,528.91
  5. Step 5: Solve for x
    x = 39,939,817,528.91/299,307.68
  6. Step 6: Final answer
    x = 133,440.67

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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.