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Finding the Fourth Proportional to 446,482.89, 669,729.87 and 130,946.31

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Solution

The fourth proportional to 446,482.89, 669,729.87 and 130,946.31 is: 196,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,482.89 : 669,729.87 = 130,946.31 : x
  2. Step 2: Convert to fraction form
    446,482.89/669,729.87 = 130,946.31/x
  3. Step 3: Cross multiply
    446,482.89x = 669,729.87 × 130,946.31
  4. Step 4: Simplify right side
    446,482.89x = 87,698,655,173.28
  5. Step 5: Solve for x
    x = 87,698,655,173.28/446,482.89
  6. Step 6: Final answer
    x = 196,421.09

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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.