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Finding the Fourth Proportional to 279,457.85, 385,654.22 and 152,133.14

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Solution

The fourth proportional to 279,457.85, 385,654.22 and 152,133.14 is: 209,945.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,457.85 : 385,654.22 = 152,133.14 : x
  2. Step 2: Convert to fraction form
    279,457.85/385,654.22 = 152,133.14/x
  3. Step 3: Cross multiply
    279,457.85x = 385,654.22 × 152,133.14
  4. Step 4: Simplify right side
    279,457.85x = 58,670,784,753.91
  5. Step 5: Solve for x
    x = 58,670,784,753.91/279,457.85
  6. Step 6: Final answer
    x = 209,945.03

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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.