Home / 319,541.44-479,312.32-109,181.44

Finding the Fourth Proportional to 319,541.44, 479,312.32 and 109,181.44

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Solution

The fourth proportional to 319,541.44, 479,312.32 and 109,181.44 is: 163,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,541.44 : 479,312.32 = 109,181.44 : x
  2. Step 2: Convert to fraction form
    319,541.44/479,312.32 = 109,181.44/x
  3. Step 3: Cross multiply
    319,541.44x = 479,312.32 × 109,181.44
  4. Step 4: Simplify right side
    319,541.44x = 52,332,009,307.34
  5. Step 5: Solve for x
    x = 52,332,009,307.34/319,541.44
  6. Step 6: Final answer
    x = 163,772.21

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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.