Home / 338,410.26-507,273.61-212,139.01

Finding the Fourth Proportional to 338,410.26, 507,273.61 and 212,139.01

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Solution

The fourth proportional to 338,410.26, 507,273.61 and 212,139.01 is: 317,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,410.26 : 507,273.61 = 212,139.01 : x
  2. Step 2: Convert to fraction form
    338,410.26/507,273.61 = 212,139.01/x
  3. Step 3: Cross multiply
    338,410.26x = 507,273.61 × 212,139.01
  4. Step 4: Simplify right side
    338,410.26x = 107,612,521,424.53
  5. Step 5: Solve for x
    x = 107,612,521,424.53/338,410.26
  6. Step 6: Final answer
    x = 317,994.26

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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.