Home / 385,329.04-531,774.12-215,566

Finding the Fourth Proportional to 385,329.04, 531,774.12 and 215,566

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Solution

The fourth proportional to 385,329.04, 531,774.12 and 215,566 is: 297,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,329.04 : 531,774.12 = 215,566 : x
  2. Step 2: Convert to fraction form
    385,329.04/531,774.12 = 215,566/x
  3. Step 3: Cross multiply
    385,329.04x = 531,774.12 × 215,566
  4. Step 4: Simplify right side
    385,329.04x = 114,632,419,951.92
  5. Step 5: Solve for x
    x = 114,632,419,951.92/385,329.04
  6. Step 6: Final answer
    x = 297,492.29

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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.