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Finding the Fourth Proportional to 284,580.90, 392,803.32 and 187,855.36

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Solution

The fourth proportional to 284,580.90, 392,803.32 and 187,855.36 is: 259,294.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,580.90 : 392,803.32 = 187,855.36 : x
  2. Step 2: Convert to fraction form
    284,580.90/392,803.32 = 187,855.36/x
  3. Step 3: Cross multiply
    284,580.90x = 392,803.32 × 187,855.36
  4. Step 4: Simplify right side
    284,580.90x = 73,790,209,087.80
  5. Step 5: Solve for x
    x = 73,790,209,087.80/284,580.90
  6. Step 6: Final answer
    x = 259,294.31

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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.