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Finding the Fourth Proportional to 319,795.32, 479,994.36 and 235,297.86

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Solution

The fourth proportional to 319,795.32, 479,994.36 and 235,297.86 is: 353,168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,795.32 : 479,994.36 = 235,297.86 : x
  2. Step 2: Convert to fraction form
    319,795.32/479,994.36 = 235,297.86/x
  3. Step 3: Cross multiply
    319,795.32x = 479,994.36 × 235,297.86
  4. Step 4: Simplify right side
    319,795.32x = 112,941,645,720.07
  5. Step 5: Solve for x
    x = 112,941,645,720.07/319,795.32
  6. Step 6: Final answer
    x = 353,168.54

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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.