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Finding the Fourth Proportional to 302,999.91, 418,138.80 and 175,748.10

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Solution

The fourth proportional to 302,999.91, 418,138.80 and 175,748.10 is: 242,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,999.91 : 418,138.80 = 175,748.10 : x
  2. Step 2: Convert to fraction form
    302,999.91/418,138.80 = 175,748.10/x
  3. Step 3: Cross multiply
    302,999.91x = 418,138.80 × 175,748.10
  4. Step 4: Simplify right side
    302,999.91x = 73,487,099,636.28
  5. Step 5: Solve for x
    x = 73,487,099,636.28/302,999.91
  6. Step 6: Final answer
    x = 242,531.75

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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.