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Finding the Fourth Proportional to 323,624.95, 484,136.55 and 279,722.95

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Solution

The fourth proportional to 323,624.95, 484,136.55 and 279,722.95 is: 418,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,624.95 : 484,136.55 = 279,722.95 : x
  2. Step 2: Convert to fraction form
    323,624.95/484,136.55 = 279,722.95/x
  3. Step 3: Cross multiply
    323,624.95x = 484,136.55 × 279,722.95
  4. Step 4: Simplify right side
    323,624.95x = 135,424,103,968.82
  5. Step 5: Solve for x
    x = 135,424,103,968.82/323,624.95
  6. Step 6: Final answer
    x = 418,460.02

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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.