Home / 385,604.01-578,399.83-105,121.26

Finding the Fourth Proportional to 385,604.01, 578,399.83 and 105,121.26

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Solution

The fourth proportional to 385,604.01, 578,399.83 and 105,121.26 is: 157,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,604.01 : 578,399.83 = 105,121.26 : x
  2. Step 2: Convert to fraction form
    385,604.01/578,399.83 = 105,121.26/x
  3. Step 3: Cross multiply
    385,604.01x = 578,399.83 × 105,121.26
  4. Step 4: Simplify right side
    385,604.01x = 60,802,118,650.58
  5. Step 5: Solve for x
    x = 60,802,118,650.58/385,604.01
  6. Step 6: Final answer
    x = 157,680.20

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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.