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Finding the Fourth Proportional to 316,705.01, 437,061.41 and 178,872.87

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Solution

The fourth proportional to 316,705.01, 437,061.41 and 178,872.87 is: 246,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,705.01 : 437,061.41 = 178,872.87 : x
  2. Step 2: Convert to fraction form
    316,705.01/437,061.41 = 178,872.87/x
  3. Step 3: Cross multiply
    316,705.01x = 437,061.41 × 178,872.87
  4. Step 4: Simplify right side
    316,705.01x = 78,178,430,188.34
  5. Step 5: Solve for x
    x = 78,178,430,188.34/316,705.01
  6. Step 6: Final answer
    x = 246,849.37

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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.