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Finding the Fourth Proportional to 608,356.98, 912,222.54 and 208,889.82

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Solution

The fourth proportional to 608,356.98, 912,222.54 and 208,889.82 is: 313,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,356.98 : 912,222.54 = 208,889.82 : x
  2. Step 2: Convert to fraction form
    608,356.98/912,222.54 = 208,889.82/x
  3. Step 3: Cross multiply
    608,356.98x = 912,222.54 × 208,889.82
  4. Step 4: Simplify right side
    608,356.98x = 190,554,002,180.54
  5. Step 5: Solve for x
    x = 190,554,002,180.54/608,356.98
  6. Step 6: Final answer
    x = 313,227.28

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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.