Home / 284,186.79-424,985.30-212,190.07

Finding the Fourth Proportional to 284,186.79, 424,985.30 and 212,190.07

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Solution

The fourth proportional to 284,186.79, 424,985.30 and 212,190.07 is: 317,318.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,186.79 : 424,985.30 = 212,190.07 : x
  2. Step 2: Convert to fraction form
    284,186.79/424,985.30 = 212,190.07/x
  3. Step 3: Cross multiply
    284,186.79x = 424,985.30 × 212,190.07
  4. Step 4: Simplify right side
    284,186.79x = 90,177,660,555.97
  5. Step 5: Solve for x
    x = 90,177,660,555.97/284,186.79
  6. Step 6: Final answer
    x = 317,318.27

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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.