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Finding the Fourth Proportional to 381,344.84, 526,125.54 and 217,884.07

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Solution

The fourth proportional to 381,344.84, 526,125.54 and 217,884.07 is: 300,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,344.84 : 526,125.54 = 217,884.07 : x
  2. Step 2: Convert to fraction form
    381,344.84/526,125.54 = 217,884.07/x
  3. Step 3: Cross multiply
    381,344.84x = 526,125.54 × 217,884.07
  4. Step 4: Simplify right side
    381,344.84x = 114,634,371,275.82
  5. Step 5: Solve for x
    x = 114,634,371,275.82/381,344.84
  6. Step 6: Final answer
    x = 300,605.54

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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.