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Finding the Fourth Proportional to 379,177.76, 523,292.88 and 218,083.34

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Solution

The fourth proportional to 379,177.76, 523,292.88 and 218,083.34 is: 300,970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,177.76 : 523,292.88 = 218,083.34 : x
  2. Step 2: Convert to fraction form
    379,177.76/523,292.88 = 218,083.34/x
  3. Step 3: Cross multiply
    379,177.76x = 523,292.88 × 218,083.34
  4. Step 4: Simplify right side
    379,177.76x = 114,121,459,068.62
  5. Step 5: Solve for x
    x = 114,121,459,068.62/379,177.76
  6. Step 6: Final answer
    x = 300,970.87

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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.