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Finding the Fourth Proportional to 187,570, 281,355 and 56,242

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Solution

The fourth proportional to 187,570, 281,355 and 56,242 is: 84,363

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,570 : 281,355 = 56,242 : x
  2. Step 2: Convert to fraction form
    187,570/281,355 = 56,242/x
  3. Step 3: Cross multiply
    187,570x = 281,355 × 56,242
  4. Step 4: Simplify right side
    187,570x = 15,823,967,910
  5. Step 5: Solve for x
    x = 15,823,967,910/187,570
  6. Step 6: Final answer
    x = 84,363

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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.