Home / 279,619.40-385,879.38-152,297.48

Finding the Fourth Proportional to 279,619.40, 385,879.38 and 152,297.48

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Solution

The fourth proportional to 279,619.40, 385,879.38 and 152,297.48 is: 210,173.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,619.40 : 385,879.38 = 152,297.48 : x
  2. Step 2: Convert to fraction form
    279,619.40/385,879.38 = 152,297.48/x
  3. Step 3: Cross multiply
    279,619.40x = 385,879.38 × 152,297.48
  4. Step 4: Simplify right side
    279,619.40x = 58,768,457,157.96
  5. Step 5: Solve for x
    x = 58,768,457,157.96/279,619.40
  6. Step 6: Final answer
    x = 210,173.03

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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.