Home / 491,815.70-738,051.60-225,439.10

Finding the Fourth Proportional to 491,815.70, 738,051.60 and 225,439.10

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Solution

The fourth proportional to 491,815.70, 738,051.60 and 225,439.10 is: 338,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,815.70 : 738,051.60 = 225,439.10 : x
  2. Step 2: Convert to fraction form
    491,815.70/738,051.60 = 225,439.10/x
  3. Step 3: Cross multiply
    491,815.70x = 738,051.60 × 225,439.10
  4. Step 4: Simplify right side
    491,815.70x = 166,385,688,457.56
  5. Step 5: Solve for x
    x = 166,385,688,457.56/491,815.70
  6. Step 6: Final answer
    x = 338,309.02

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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.