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Finding the Fourth Proportional to 381,543.32, 526,422.84 and 238,448.72

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Solution

The fourth proportional to 381,543.32, 526,422.84 and 238,448.72 is: 328,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,543.32 : 526,422.84 = 238,448.72 : x
  2. Step 2: Convert to fraction form
    381,543.32/526,422.84 = 238,448.72/x
  3. Step 3: Cross multiply
    381,543.32x = 526,422.84 × 238,448.72
  4. Step 4: Simplify right side
    381,543.32x = 125,524,852,376.77
  5. Step 5: Solve for x
    x = 125,524,852,376.77/381,543.32
  6. Step 6: Final answer
    x = 328,992.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.