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Finding the Fourth Proportional to 351,760.32, 486,072.96 and 256,100.96

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Solution

The fourth proportional to 351,760.32, 486,072.96 and 256,100.96 is: 353,887.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,760.32 : 486,072.96 = 256,100.96 : x
  2. Step 2: Convert to fraction form
    351,760.32/486,072.96 = 256,100.96/x
  3. Step 3: Cross multiply
    351,760.32x = 486,072.96 × 256,100.96
  4. Step 4: Simplify right side
    351,760.32x = 124,483,751,686.04
  5. Step 5: Solve for x
    x = 124,483,751,686.04/351,760.32
  6. Step 6: Final answer
    x = 353,887.99

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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.