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Finding the Fourth Proportional to 319,775.72, 441,023.46 and 239,393.48

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Solution

The fourth proportional to 319,775.72, 441,023.46 and 239,393.48 is: 330,163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,775.72 : 441,023.46 = 239,393.48 : x
  2. Step 2: Convert to fraction form
    319,775.72/441,023.46 = 239,393.48/x
  3. Step 3: Cross multiply
    319,775.72x = 441,023.46 × 239,393.48
  4. Step 4: Simplify right side
    319,775.72x = 105,578,140,851.04
  5. Step 5: Solve for x
    x = 105,578,140,851.04/319,775.72
  6. Step 6: Final answer
    x = 330,163.09

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1.5x scale

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.