Home / 321,013.20-481,577.40-134,043.60

Finding the Fourth Proportional to 321,013.20, 481,577.40 and 134,043.60

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Solution

The fourth proportional to 321,013.20, 481,577.40 and 134,043.60 is: 201,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,013.20 : 481,577.40 = 134,043.60 : x
  2. Step 2: Convert to fraction form
    321,013.20/481,577.40 = 134,043.60/x
  3. Step 3: Cross multiply
    321,013.20x = 481,577.40 × 134,043.60
  4. Step 4: Simplify right side
    321,013.20x = 64,552,368,374.64
  5. Step 5: Solve for x
    x = 64,552,368,374.64/321,013.20
  6. Step 6: Final answer
    x = 201,089.45

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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.