Home / 338,199.18-465,652.64-287,106

Finding the Fourth Proportional to 338,199.18, 465,652.64 and 287,106

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Solution

The fourth proportional to 338,199.18, 465,652.64 and 287,106 is: 395,304.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,199.18 : 465,652.64 = 287,106 : x
  2. Step 2: Convert to fraction form
    338,199.18/465,652.64 = 287,106/x
  3. Step 3: Cross multiply
    338,199.18x = 465,652.64 × 287,106
  4. Step 4: Simplify right side
    338,199.18x = 133,691,665,424.31
  5. Step 5: Solve for x
    x = 133,691,665,424.31/338,199.18
  6. Step 6: Final answer
    x = 395,304.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.