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Finding the Fourth Proportional to 510,583.45, 765,903.98 and 155,609.05

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Solution

The fourth proportional to 510,583.45, 765,903.98 and 155,609.05 is: 233,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,583.45 : 765,903.98 = 155,609.05 : x
  2. Step 2: Convert to fraction form
    510,583.45/765,903.98 = 155,609.05/x
  3. Step 3: Cross multiply
    510,583.45x = 765,903.98 × 155,609.05
  4. Step 4: Simplify right side
    510,583.45x = 119,181,589,940.97
  5. Step 5: Solve for x
    x = 119,181,589,940.97/510,583.45
  6. Step 6: Final answer
    x = 233,422.35

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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.