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Finding the Fourth Proportional to 474,664.39, 655,031.31 and 256,868.01

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Solution

The fourth proportional to 474,664.39, 655,031.31 and 256,868.01 is: 354,474.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,664.39 : 655,031.31 = 256,868.01 : x
  2. Step 2: Convert to fraction form
    474,664.39/655,031.31 = 256,868.01/x
  3. Step 3: Cross multiply
    474,664.39x = 655,031.31 × 256,868.01
  4. Step 4: Simplify right side
    474,664.39x = 168,256,588,124.14
  5. Step 5: Solve for x
    x = 168,256,588,124.14/474,664.39
  6. Step 6: Final answer
    x = 354,474.85

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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.