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Finding the Fourth Proportional to 254,097.81, 381,084.75 and 85,574.27

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Solution

The fourth proportional to 254,097.81, 381,084.75 and 85,574.27 is: 128,340.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,097.81 : 381,084.75 = 85,574.27 : x
  2. Step 2: Convert to fraction form
    254,097.81/381,084.75 = 85,574.27/x
  3. Step 3: Cross multiply
    254,097.81x = 381,084.75 × 85,574.27
  4. Step 4: Simplify right side
    254,097.81x = 32,611,050,242.09
  5. Step 5: Solve for x
    x = 32,611,050,242.09/254,097.81
  6. Step 6: Final answer
    x = 128,340.54

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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.