Home / 313,558.14-470,368.35-100,272.47

Finding the Fourth Proportional to 313,558.14, 470,368.35 and 100,272.47

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Solution

The fourth proportional to 313,558.14, 470,368.35 and 100,272.47 is: 150,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,558.14 : 470,368.35 = 100,272.47 : x
  2. Step 2: Convert to fraction form
    313,558.14/470,368.35 = 100,272.47/x
  3. Step 3: Cross multiply
    313,558.14x = 470,368.35 × 100,272.47
  4. Step 4: Simplify right side
    313,558.14x = 47,164,993,912.48
  5. Step 5: Solve for x
    x = 47,164,993,912.48/313,558.14
  6. Step 6: Final answer
    x = 150,418.66

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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.