Home / 385,197.51-531,742.82-230,203.48

Finding the Fourth Proportional to 385,197.51, 531,742.82 and 230,203.48

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Solution

The fourth proportional to 385,197.51, 531,742.82 and 230,203.48 is: 317,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,197.51 : 531,742.82 = 230,203.48 : x
  2. Step 2: Convert to fraction form
    385,197.51/531,742.82 = 230,203.48/x
  3. Step 3: Cross multiply
    385,197.51x = 531,742.82 × 230,203.48
  4. Step 4: Simplify right side
    385,197.51x = 122,409,047,629.01
  5. Step 5: Solve for x
    x = 122,409,047,629.01/385,197.51
  6. Step 6: Final answer
    x = 317,782.55

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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.