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Finding the Fourth Proportional to 190,692, 263,203.32 and 130,287.06

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Solution

The fourth proportional to 190,692, 263,203.32 and 130,287.06 is: 179,829.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,692 : 263,203.32 = 130,287.06 : x
  2. Step 2: Convert to fraction form
    190,692/263,203.32 = 130,287.06/x
  3. Step 3: Cross multiply
    190,692x = 263,203.32 × 130,287.06
  4. Step 4: Simplify right side
    190,692x = 34,291,986,745.04
  5. Step 5: Solve for x
    x = 34,291,986,745.04/190,692
  6. Step 6: Final answer
    x = 179,829.18

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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.