Home / 272,178.12-408,126.60-122,290.32

Finding the Fourth Proportional to 272,178.12, 408,126.60 and 122,290.32

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Solution

The fourth proportional to 272,178.12, 408,126.60 and 122,290.32 is: 183,372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,178.12 : 408,126.60 = 122,290.32 : x
  2. Step 2: Convert to fraction form
    272,178.12/408,126.60 = 122,290.32/x
  3. Step 3: Cross multiply
    272,178.12x = 408,126.60 × 122,290.32
  4. Step 4: Simplify right side
    272,178.12x = 49,909,932,514.51
  5. Step 5: Solve for x
    x = 49,909,932,514.51/272,178.12
  6. Step 6: Final answer
    x = 183,372.32

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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.