Home / 385,222.91-531,604.73-215,457.04

Finding the Fourth Proportional to 385,222.91, 531,604.73 and 215,457.04

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Solution

The fourth proportional to 385,222.91, 531,604.73 and 215,457.04 is: 297,329.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,222.91 : 531,604.73 = 215,457.04 : x
  2. Step 2: Convert to fraction form
    385,222.91/531,604.73 = 215,457.04/x
  3. Step 3: Cross multiply
    385,222.91x = 531,604.73 × 215,457.04
  4. Step 4: Simplify right side
    385,222.91x = 114,537,977,840.49
  5. Step 5: Solve for x
    x = 114,537,977,840.49/385,222.91
  6. Step 6: Final answer
    x = 297,329.09

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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.