Home / 385,007.24-531,294.69-212,914.04

Finding the Fourth Proportional to 385,007.24, 531,294.69 and 212,914.04

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Solution

The fourth proportional to 385,007.24, 531,294.69 and 212,914.04 is: 293,812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,007.24 : 531,294.69 = 212,914.04 : x
  2. Step 2: Convert to fraction form
    385,007.24/531,294.69 = 212,914.04/x
  3. Step 3: Cross multiply
    385,007.24x = 531,294.69 × 212,914.04
  4. Step 4: Simplify right side
    385,007.24x = 113,120,098,878.45
  5. Step 5: Solve for x
    x = 113,120,098,878.45/385,007.24
  6. Step 6: Final answer
    x = 293,812.91

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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.