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Finding the Fourth Proportional to 319,357.52, 440,698.55 and 183,295.70

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Solution

The fourth proportional to 319,357.52, 440,698.55 and 183,295.70 is: 252,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,357.52 : 440,698.55 = 183,295.70 : x
  2. Step 2: Convert to fraction form
    319,357.52/440,698.55 = 183,295.70/x
  3. Step 3: Cross multiply
    319,357.52x = 440,698.55 × 183,295.70
  4. Step 4: Simplify right side
    319,357.52x = 80,778,149,396.50
  5. Step 5: Solve for x
    x = 80,778,149,396.50/319,357.52
  6. Step 6: Final answer
    x = 252,939.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.