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Finding the Fourth Proportional to 375,660, 563,490 and 126,342

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Solution

The fourth proportional to 375,660, 563,490 and 126,342 is: 189,513

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,660 : 563,490 = 126,342 : x
  2. Step 2: Convert to fraction form
    375,660/563,490 = 126,342/x
  3. Step 3: Cross multiply
    375,660x = 563,490 × 126,342
  4. Step 4: Simplify right side
    375,660x = 71,192,453,580
  5. Step 5: Solve for x
    x = 71,192,453,580/375,660
  6. Step 6: Final answer
    x = 189,513

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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.