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Finding the Fourth Proportional to 279,605.82, 385,860.31 and 152,281.42

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Solution

The fourth proportional to 279,605.82, 385,860.31 and 152,281.42 is: 210,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,605.82 : 385,860.31 = 152,281.42 : x
  2. Step 2: Convert to fraction form
    279,605.82/385,860.31 = 152,281.42/x
  3. Step 3: Cross multiply
    279,605.82x = 385,860.31 × 152,281.42
  4. Step 4: Simplify right side
    279,605.82x = 58,759,354,583.09
  5. Step 5: Solve for x
    x = 58,759,354,583.09/279,605.82
  6. Step 6: Final answer
    x = 210,150.68

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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.