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Finding the Fourth Proportional to 284,618.88, 426,674.88 and 209,554.56

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Solution

The fourth proportional to 284,618.88, 426,674.88 and 209,554.56 is: 314,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,618.88 : 426,674.88 = 209,554.56 : x
  2. Step 2: Convert to fraction form
    284,618.88/426,674.88 = 209,554.56/x
  3. Step 3: Cross multiply
    284,618.88x = 426,674.88 × 209,554.56
  4. Step 4: Simplify right side
    284,618.88x = 89,411,666,741.45
  5. Step 5: Solve for x
    x = 89,411,666,741.45/284,618.88
  6. Step 6: Final answer
    x = 314,145.24

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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.