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Finding the Fourth Proportional to 418,877.34, 628,302.63 and 134,566.73

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Solution

The fourth proportional to 418,877.34, 628,302.63 and 134,566.73 is: 201,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,877.34 : 628,302.63 = 134,566.73 : x
  2. Step 2: Convert to fraction form
    418,877.34/628,302.63 = 134,566.73/x
  3. Step 3: Cross multiply
    418,877.34x = 628,302.63 × 134,566.73
  4. Step 4: Simplify right side
    418,877.34x = 84,548,630,369.50
  5. Step 5: Solve for x
    x = 84,548,630,369.50/418,877.34
  6. Step 6: Final answer
    x = 201,845.80

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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.