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Finding the Fourth Proportional to 230,852.40, 346,278.60 and 213,745.20

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Solution

The fourth proportional to 230,852.40, 346,278.60 and 213,745.20 is: 320,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,852.40 : 346,278.60 = 213,745.20 : x
  2. Step 2: Convert to fraction form
    230,852.40/346,278.60 = 213,745.20/x
  3. Step 3: Cross multiply
    230,852.40x = 346,278.60 × 213,745.20
  4. Step 4: Simplify right side
    230,852.40x = 74,015,388,612.72
  5. Step 5: Solve for x
    x = 74,015,388,612.72/230,852.40
  6. Step 6: Final answer
    x = 320,617.80

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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.