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Finding the Fourth Proportional to 344,018.75, 474,815.72 and 198,830.70

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Solution

The fourth proportional to 344,018.75, 474,815.72 and 198,830.70 is: 274,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,018.75 : 474,815.72 = 198,830.70 : x
  2. Step 2: Convert to fraction form
    344,018.75/474,815.72 = 198,830.70/x
  3. Step 3: Cross multiply
    344,018.75x = 474,815.72 × 198,830.70
  4. Step 4: Simplify right side
    344,018.75x = 94,407,942,475.68
  5. Step 5: Solve for x
    x = 94,407,942,475.68/344,018.75
  6. Step 6: Final answer
    x = 274,426.74

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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.