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Finding the Fourth Proportional to 608,424.60, 912,680.10 and 187,699.80

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Solution

The fourth proportional to 608,424.60, 912,680.10 and 187,699.80 is: 281,563.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,424.60 : 912,680.10 = 187,699.80 : x
  2. Step 2: Convert to fraction form
    608,424.60/912,680.10 = 187,699.80/x
  3. Step 3: Cross multiply
    608,424.60x = 912,680.10 × 187,699.80
  4. Step 4: Simplify right side
    608,424.60x = 171,309,872,233.98
  5. Step 5: Solve for x
    x = 171,309,872,233.98/608,424.60
  6. Step 6: Final answer
    x = 281,563.03

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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.