Home / 385,965.81-579,004.53-146,014.65

Finding the Fourth Proportional to 385,965.81, 579,004.53 and 146,014.65

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Solution

The fourth proportional to 385,965.81, 579,004.53 and 146,014.65 is: 219,043.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,965.81 : 579,004.53 = 146,014.65 : x
  2. Step 2: Convert to fraction form
    385,965.81/579,004.53 = 146,014.65/x
  3. Step 3: Cross multiply
    385,965.81x = 579,004.53 × 146,014.65
  4. Step 4: Simplify right side
    385,965.81x = 84,543,143,796.36
  5. Step 5: Solve for x
    x = 84,543,143,796.36/385,965.81
  6. Step 6: Final answer
    x = 219,043.09

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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.