Home / 309,529.26-427,226.27-188,737.07

Finding the Fourth Proportional to 309,529.26, 427,226.27 and 188,737.07

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Solution

The fourth proportional to 309,529.26, 427,226.27 and 188,737.07 is: 260,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,529.26 : 427,226.27 = 188,737.07 : x
  2. Step 2: Convert to fraction form
    309,529.26/427,226.27 = 188,737.07/x
  3. Step 3: Cross multiply
    309,529.26x = 427,226.27 × 188,737.07
  4. Step 4: Simplify right side
    309,529.26x = 80,633,431,347.01
  5. Step 5: Solve for x
    x = 80,633,431,347.01/309,529.26
  6. Step 6: Final answer
    x = 260,503.42

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1.5x scale

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.