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Finding the Fourth Proportional to 446,072.40, 669,043.80 and 130,496.40

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Solution

The fourth proportional to 446,072.40, 669,043.80 and 130,496.40 is: 195,725.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,072.40 : 669,043.80 = 130,496.40 : x
  2. Step 2: Convert to fraction form
    446,072.40/669,043.80 = 130,496.40/x
  3. Step 3: Cross multiply
    446,072.40x = 669,043.80 × 130,496.40
  4. Step 4: Simplify right side
    446,072.40x = 87,307,807,342.32
  5. Step 5: Solve for x
    x = 87,307,807,342.32/446,072.40
  6. Step 6: Final answer
    x = 195,725.64

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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.