Home / 338,408.76-507,271.36-212,137.51

Finding the Fourth Proportional to 338,408.76, 507,271.36 and 212,137.51

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Solution

The fourth proportional to 338,408.76, 507,271.36 and 212,137.51 is: 317,992.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,408.76 : 507,271.36 = 212,137.51 : x
  2. Step 2: Convert to fraction form
    338,408.76/507,271.36 = 212,137.51/x
  3. Step 3: Cross multiply
    338,408.76x = 507,271.36 × 212,137.51
  4. Step 4: Simplify right side
    338,408.76x = 107,611,281,328.38
  5. Step 5: Solve for x
    x = 107,611,281,328.38/338,408.76
  6. Step 6: Final answer
    x = 317,992.01

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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.