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Finding the Fourth Proportional to 362,123.80, 543,185.70 and 228,279.40

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Solution

The fourth proportional to 362,123.80, 543,185.70 and 228,279.40 is: 342,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,123.80 : 543,185.70 = 228,279.40 : x
  2. Step 2: Convert to fraction form
    362,123.80/543,185.70 = 228,279.40/x
  3. Step 3: Cross multiply
    362,123.80x = 543,185.70 × 228,279.40
  4. Step 4: Simplify right side
    362,123.80x = 123,998,105,684.58
  5. Step 5: Solve for x
    x = 123,998,105,684.58/362,123.80
  6. Step 6: Final answer
    x = 342,419.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.