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Finding the Fourth Proportional to 398,749.69, 597,883.63 and 158,900.49

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Solution

The fourth proportional to 398,749.69, 597,883.63 and 158,900.49 is: 238,254.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,749.69 : 597,883.63 = 158,900.49 : x
  2. Step 2: Convert to fraction form
    398,749.69/597,883.63 = 158,900.49/x
  3. Step 3: Cross multiply
    398,749.69x = 597,883.63 × 158,900.49
  4. Step 4: Simplify right side
    398,749.69x = 95,004,000,975.48
  5. Step 5: Solve for x
    x = 95,004,000,975.48/398,749.69
  6. Step 6: Final answer
    x = 238,254.73

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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.