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Finding the Fourth Proportional to 251,060, 346,493.52 and 145,076

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Solution

The fourth proportional to 251,060, 346,493.52 and 145,076 is: 200,222.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,060 : 346,493.52 = 145,076 : x
  2. Step 2: Convert to fraction form
    251,060/346,493.52 = 145,076/x
  3. Step 3: Cross multiply
    251,060x = 346,493.52 × 145,076
  4. Step 4: Simplify right side
    251,060x = 50,267,893,907.52
  5. Step 5: Solve for x
    x = 50,267,893,907.52/251,060
  6. Step 6: Final answer
    x = 200,222.63

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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.