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Finding the Fourth Proportional to 385,810.78, 578,716.23 and 161,048.62

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Solution

The fourth proportional to 385,810.78, 578,716.23 and 161,048.62 is: 241,572.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,810.78 : 578,716.23 = 161,048.62 : x
  2. Step 2: Convert to fraction form
    385,810.78/578,716.23 = 161,048.62/x
  3. Step 3: Cross multiply
    385,810.78x = 578,716.23 × 161,048.62
  4. Step 4: Simplify right side
    385,810.78x = 93,201,450,213.10
  5. Step 5: Solve for x
    x = 93,201,450,213.10/385,810.78
  6. Step 6: Final answer
    x = 241,572.96

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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.