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Finding the Fourth Proportional to 437,957.20, 657,108.60 and 171,672.40

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Solution

The fourth proportional to 437,957.20, 657,108.60 and 171,672.40 is: 257,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,957.20 : 657,108.60 = 171,672.40 : x
  2. Step 2: Convert to fraction form
    437,957.20/657,108.60 = 171,672.40/x
  3. Step 3: Cross multiply
    437,957.20x = 657,108.60 × 171,672.40
  4. Step 4: Simplify right side
    437,957.20x = 112,807,410,422.64
  5. Step 5: Solve for x
    x = 112,807,410,422.64/437,957.20
  6. Step 6: Final answer
    x = 257,576.33

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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.