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Finding the Fourth Proportional to 372,384.27, 513,928.11 and 219,471.69

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Solution

The fourth proportional to 372,384.27, 513,928.11 and 219,471.69 is: 302,893.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,384.27 : 513,928.11 = 219,471.69 : x
  2. Step 2: Convert to fraction form
    372,384.27/513,928.11 = 219,471.69/x
  3. Step 3: Cross multiply
    372,384.27x = 513,928.11 × 219,471.69
  4. Step 4: Simplify right side
    372,384.27x = 112,792,670,840.21
  5. Step 5: Solve for x
    x = 112,792,670,840.21/372,384.27
  6. Step 6: Final answer
    x = 302,893.22

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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.