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Finding the Fourth Proportional to 435,484, 653,226 and 139,996

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Solution

The fourth proportional to 435,484, 653,226 and 139,996 is: 209,994

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,484 : 653,226 = 139,996 : x
  2. Step 2: Convert to fraction form
    435,484/653,226 = 139,996/x
  3. Step 3: Cross multiply
    435,484x = 653,226 × 139,996
  4. Step 4: Simplify right side
    435,484x = 91,449,027,096
  5. Step 5: Solve for x
    x = 91,449,027,096/435,484
  6. Step 6: Final answer
    x = 209,994

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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.