Home / 289,087.58-433,382.01-139,121.57

Finding the Fourth Proportional to 289,087.58, 433,382.01 and 139,121.57

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Solution

The fourth proportional to 289,087.58, 433,382.01 and 139,121.57 is: 208,562.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,087.58 : 433,382.01 = 139,121.57 : x
  2. Step 2: Convert to fraction form
    289,087.58/433,382.01 = 139,121.57/x
  3. Step 3: Cross multiply
    289,087.58x = 433,382.01 × 139,121.57
  4. Step 4: Simplify right side
    289,087.58x = 60,292,783,474.05
  5. Step 5: Solve for x
    x = 60,292,783,474.05/289,087.58
  6. Step 6: Final answer
    x = 208,562.35

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1.5x scale

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.