Home / 414,748.80-621,662.40-178,051.20

Finding the Fourth Proportional to 414,748.80, 621,662.40 and 178,051.20

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Solution

The fourth proportional to 414,748.80, 621,662.40 and 178,051.20 is: 266,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,748.80 : 621,662.40 = 178,051.20 : x
  2. Step 2: Convert to fraction form
    414,748.80/621,662.40 = 178,051.20/x
  3. Step 3: Cross multiply
    414,748.80x = 621,662.40 × 178,051.20
  4. Step 4: Simplify right side
    414,748.80x = 110,687,736,314.88
  5. Step 5: Solve for x
    x = 110,687,736,314.88/414,748.80
  6. Step 6: Final answer
    x = 266,878.98

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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.