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Finding the Fourth Proportional to 338,577.10, 507,896.87 and 122,489.89

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Solution

The fourth proportional to 338,577.10, 507,896.87 and 122,489.89 is: 183,746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,577.10 : 507,896.87 = 122,489.89 : x
  2. Step 2: Convert to fraction form
    338,577.10/507,896.87 = 122,489.89/x
  3. Step 3: Cross multiply
    338,577.10x = 507,896.87 × 122,489.89
  4. Step 4: Simplify right side
    338,577.10x = 62,212,229,855.45
  5. Step 5: Solve for x
    x = 62,212,229,855.45/338,577.10
  6. Step 6: Final answer
    x = 183,746.13

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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.