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Finding the Fourth Proportional to 489,996.41, 676,172.05 and 272,219.14

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Solution

The fourth proportional to 489,996.41, 676,172.05 and 272,219.14 is: 375,649.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,996.41 : 676,172.05 = 272,219.14 : x
  2. Step 2: Convert to fraction form
    489,996.41/676,172.05 = 272,219.14/x
  3. Step 3: Cross multiply
    489,996.41x = 676,172.05 × 272,219.14
  4. Step 4: Simplify right side
    489,996.41x = 184,066,970,588.26
  5. Step 5: Solve for x
    x = 184,066,970,588.26/489,996.41
  6. Step 6: Final answer
    x = 375,649.63

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1.5x scale

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.