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Finding the Fourth Proportional to 355,271.10, 532,906.65 and 256,127.10

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Solution

The fourth proportional to 355,271.10, 532,906.65 and 256,127.10 is: 384,190.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,271.10 : 532,906.65 = 256,127.10 : x
  2. Step 2: Convert to fraction form
    355,271.10/532,906.65 = 256,127.10/x
  3. Step 3: Cross multiply
    355,271.10x = 532,906.65 × 256,127.10
  4. Step 4: Simplify right side
    355,271.10x = 136,491,834,835.22
  5. Step 5: Solve for x
    x = 136,491,834,835.22/355,271.10
  6. Step 6: Final answer
    x = 384,190.65

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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.