Home / 388,741.06-536,464.11-225,429.40

Finding the Fourth Proportional to 388,741.06, 536,464.11 and 225,429.40

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Solution

The fourth proportional to 388,741.06, 536,464.11 and 225,429.40 is: 311,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,741.06 : 536,464.11 = 225,429.40 : x
  2. Step 2: Convert to fraction form
    388,741.06/536,464.11 = 225,429.40/x
  3. Step 3: Cross multiply
    388,741.06x = 536,464.11 × 225,429.40
  4. Step 4: Simplify right side
    388,741.06x = 120,934,782,438.83
  5. Step 5: Solve for x
    x = 120,934,782,438.83/388,741.06
  6. Step 6: Final answer
    x = 311,093.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.