Home / 446,686.40-669,964.80-131,110.40

Finding the Fourth Proportional to 446,686.40, 669,964.80 and 131,110.40

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Solution

The fourth proportional to 446,686.40, 669,964.80 and 131,110.40 is: 196,646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,686.40 : 669,964.80 = 131,110.40 : x
  2. Step 2: Convert to fraction form
    446,686.40/669,964.80 = 131,110.40/x
  3. Step 3: Cross multiply
    446,686.40x = 669,964.80 × 131,110.40
  4. Step 4: Simplify right side
    446,686.40x = 87,839,352,913.92
  5. Step 5: Solve for x
    x = 87,839,352,913.92/446,686.40
  6. Step 6: Final answer
    x = 196,646.58

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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.