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Finding the Fourth Proportional to 471,960.36, 651,297.78 and 257,103

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Solution

The fourth proportional to 471,960.36, 651,297.78 and 257,103 is: 354,798.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,960.36 : 651,297.78 = 257,103 : x
  2. Step 2: Convert to fraction form
    471,960.36/651,297.78 = 257,103/x
  3. Step 3: Cross multiply
    471,960.36x = 651,297.78 × 257,103
  4. Step 4: Simplify right side
    471,960.36x = 167,450,613,131.34
  5. Step 5: Solve for x
    x = 167,450,613,131.34/471,960.36
  6. Step 6: Final answer
    x = 354,798.05

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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.