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Finding the Fourth Proportional to 381,573.64, 526,464.93 and 238,479.04

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Solution

The fourth proportional to 381,573.64, 526,464.93 and 238,479.04 is: 329,034.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,573.64 : 526,464.93 = 238,479.04 : x
  2. Step 2: Convert to fraction form
    381,573.64/526,464.93 = 238,479.04/x
  3. Step 3: Cross multiply
    381,573.64x = 526,464.93 × 238,479.04
  4. Step 4: Simplify right side
    381,573.64x = 125,550,851,100.07
  5. Step 5: Solve for x
    x = 125,550,851,100.07/381,573.64
  6. Step 6: Final answer
    x = 329,034.39

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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.