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Finding the Fourth Proportional to 375,657, 563,485.50 and 126,339

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Solution

The fourth proportional to 375,657, 563,485.50 and 126,339 is: 189,508.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,657 : 563,485.50 = 126,339 : x
  2. Step 2: Convert to fraction form
    375,657/563,485.50 = 126,339/x
  3. Step 3: Cross multiply
    375,657x = 563,485.50 × 126,339
  4. Step 4: Simplify right side
    375,657x = 71,190,194,584.50
  5. Step 5: Solve for x
    x = 71,190,194,584.50/375,657
  6. Step 6: Final answer
    x = 189,508.50

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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.