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Finding the Fourth Proportional to 380,404.41, 524,951.68 and 210,634.89

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Solution

The fourth proportional to 380,404.41, 524,951.68 and 210,634.89 is: 290,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,404.41 : 524,951.68 = 210,634.89 : x
  2. Step 2: Convert to fraction form
    380,404.41/524,951.68 = 210,634.89/x
  3. Step 3: Cross multiply
    380,404.41x = 524,951.68 × 210,634.89
  4. Step 4: Simplify right side
    380,404.41x = 110,573,138,318.94
  5. Step 5: Solve for x
    x = 110,573,138,318.94/380,404.41
  6. Step 6: Final answer
    x = 290,672.60

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1.5x scale

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.