Home / 319,825.22-480,309.62-306,967.66

Finding the Fourth Proportional to 319,825.22, 480,309.62 and 306,967.66

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Solution

The fourth proportional to 319,825.22, 480,309.62 and 306,967.66 is: 461,000.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,825.22 : 480,309.62 = 306,967.66 : x
  2. Step 2: Convert to fraction form
    319,825.22/480,309.62 = 306,967.66/x
  3. Step 3: Cross multiply
    319,825.22x = 480,309.62 × 306,967.66
  4. Step 4: Simplify right side
    319,825.22x = 147,439,520,126.89
  5. Step 5: Solve for x
    x = 147,439,520,126.89/319,825.22
  6. Step 6: Final answer
    x = 461,000.29

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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.