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Finding the Fourth Proportional to 338,597.72, 507,907.36 and 125,419.29

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Solution

The fourth proportional to 338,597.72, 507,907.36 and 125,419.29 is: 188,132.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,597.72 : 507,907.36 = 125,419.29 : x
  2. Step 2: Convert to fraction form
    338,597.72/507,907.36 = 125,419.29/x
  3. Step 3: Cross multiply
    338,597.72x = 507,907.36 × 125,419.29
  4. Step 4: Simplify right side
    338,597.72x = 63,701,378,729.10
  5. Step 5: Solve for x
    x = 63,701,378,729.10/338,597.72
  6. Step 6: Final answer
    x = 188,132.92

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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.