Home / 231,030.40-346,660.80-131,267.20

Finding the Fourth Proportional to 231,030.40, 346,660.80 and 131,267.20

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Solution

The fourth proportional to 231,030.40, 346,660.80 and 131,267.20 is: 196,966.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,030.40 : 346,660.80 = 131,267.20 : x
  2. Step 2: Convert to fraction form
    231,030.40/346,660.80 = 131,267.20/x
  3. Step 3: Cross multiply
    231,030.40x = 346,660.80 × 131,267.20
  4. Step 4: Simplify right side
    231,030.40x = 45,505,192,565.76
  5. Step 5: Solve for x
    x = 45,505,192,565.76/231,030.40
  6. Step 6: Final answer
    x = 196,966.25

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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.