Home / 338,736.70-507,662.10-138,823.02

Finding the Fourth Proportional to 338,736.70, 507,662.10 and 138,823.02

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Solution

The fourth proportional to 338,736.70, 507,662.10 and 138,823.02 is: 208,053.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,736.70 : 507,662.10 = 138,823.02 : x
  2. Step 2: Convert to fraction form
    338,736.70/507,662.10 = 138,823.02/x
  3. Step 3: Cross multiply
    338,736.70x = 507,662.10 × 138,823.02
  4. Step 4: Simplify right side
    338,736.70x = 70,475,185,861.54
  5. Step 5: Solve for x
    x = 70,475,185,861.54/338,736.70
  6. Step 6: Final answer
    x = 208,053.00

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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.