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Finding the Fourth Proportional to 336,963, 505,473.66 and 87,645

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Solution

The fourth proportional to 336,963, 505,473.66 and 87,645 is: 131,475.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,963 : 505,473.66 = 87,645 : x
  2. Step 2: Convert to fraction form
    336,963/505,473.66 = 87,645/x
  3. Step 3: Cross multiply
    336,963x = 505,473.66 × 87,645
  4. Step 4: Simplify right side
    336,963x = 44,302,238,930.70
  5. Step 5: Solve for x
    x = 44,302,238,930.70/336,963
  6. Step 6: Final answer
    x = 131,475.08

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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.