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Finding the Fourth Proportional to 256,243.79, 384,367.06 and 168,055.76

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Solution

The fourth proportional to 256,243.79, 384,367.06 and 168,055.76 is: 252,084.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,243.79 : 384,367.06 = 168,055.76 : x
  2. Step 2: Convert to fraction form
    256,243.79/384,367.06 = 168,055.76/x
  3. Step 3: Cross multiply
    256,243.79x = 384,367.06 × 168,055.76
  4. Step 4: Simplify right side
    256,243.79x = 64,595,096,045.29
  5. Step 5: Solve for x
    x = 64,595,096,045.29/256,243.79
  6. Step 6: Final answer
    x = 252,084.53

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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.