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Finding the Fourth Proportional to 316,167.84, 436,311.90 and 178,348.50

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Solution

The fourth proportional to 316,167.84, 436,311.90 and 178,348.50 is: 246,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,167.84 : 436,311.90 = 178,348.50 : x
  2. Step 2: Convert to fraction form
    316,167.84/436,311.90 = 178,348.50/x
  3. Step 3: Cross multiply
    316,167.84x = 436,311.90 × 178,348.50
  4. Step 4: Simplify right side
    316,167.84x = 77,815,572,897.15
  5. Step 5: Solve for x
    x = 77,815,572,897.15/316,167.84
  6. Step 6: Final answer
    x = 246,121.09

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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.