Home / 430,955.68-646,531.44-131,463.04

Finding the Fourth Proportional to 430,955.68, 646,531.44 and 131,463.04

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Solution

The fourth proportional to 430,955.68, 646,531.44 and 131,463.04 is: 197,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,955.68 : 646,531.44 = 131,463.04 : x
  2. Step 2: Convert to fraction form
    430,955.68/646,531.44 = 131,463.04/x
  3. Step 3: Cross multiply
    430,955.68x = 646,531.44 × 131,463.04
  4. Step 4: Simplify right side
    430,955.68x = 84,994,988,557.98
  5. Step 5: Solve for x
    x = 84,994,988,557.98/430,955.68
  6. Step 6: Final answer
    x = 197,224.43

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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.