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Finding the Fourth Proportional to 279,495.84, 385,670.88 and 164,687.52

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Solution

The fourth proportional to 279,495.84, 385,670.88 and 164,687.52 is: 227,249.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,495.84 : 385,670.88 = 164,687.52 : x
  2. Step 2: Convert to fraction form
    279,495.84/385,670.88 = 164,687.52/x
  3. Step 3: Cross multiply
    279,495.84x = 385,670.88 × 164,687.52
  4. Step 4: Simplify right side
    279,495.84x = 63,515,180,763.42
  5. Step 5: Solve for x
    x = 63,515,180,763.42/279,495.84
  6. Step 6: Final answer
    x = 227,249.11

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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.