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Finding the Fourth Proportional to 276,361.60, 381,345.12 and 174,348.58

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Solution

The fourth proportional to 276,361.60, 381,345.12 and 174,348.58 is: 240,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,361.60 : 381,345.12 = 174,348.58 : x
  2. Step 2: Convert to fraction form
    276,361.60/381,345.12 = 174,348.58/x
  3. Step 3: Cross multiply
    276,361.60x = 381,345.12 × 174,348.58
  4. Step 4: Simplify right side
    276,361.60x = 66,486,980,161.93
  5. Step 5: Solve for x
    x = 66,486,980,161.93/276,361.60
  6. Step 6: Final answer
    x = 240,579.66

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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.