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Finding the Fourth Proportional to 608,453.98, 912,830.42 and 209,100.49

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Solution

The fourth proportional to 608,453.98, 912,830.42 and 209,100.49 is: 313,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,453.98 : 912,830.42 = 209,100.49 : x
  2. Step 2: Convert to fraction form
    608,453.98/912,830.42 = 209,100.49/x
  3. Step 3: Cross multiply
    608,453.98x = 912,830.42 × 209,100.49
  4. Step 4: Simplify right side
    608,453.98x = 190,873,288,108.91
  5. Step 5: Solve for x
    x = 190,873,288,108.91/608,453.98
  6. Step 6: Final answer
    x = 313,702.09

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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.