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Finding the Fourth Proportional to 379,611.04, 523,838.26 and 218,440.07

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Solution

The fourth proportional to 379,611.04, 523,838.26 and 218,440.07 is: 301,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,611.04 : 523,838.26 = 218,440.07 : x
  2. Step 2: Convert to fraction form
    379,611.04/523,838.26 = 218,440.07/x
  3. Step 3: Cross multiply
    379,611.04x = 523,838.26 × 218,440.07
  4. Step 4: Simplify right side
    379,611.04x = 114,427,266,183.08
  5. Step 5: Solve for x
    x = 114,427,266,183.08/379,611.04
  6. Step 6: Final answer
    x = 301,432.93

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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.