Home / 228,290.44-315,023.70-127,669

Finding the Fourth Proportional to 228,290.44, 315,023.70 and 127,669

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Solution

The fourth proportional to 228,290.44, 315,023.70 and 127,669 is: 176,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,290.44 : 315,023.70 = 127,669 : x
  2. Step 2: Convert to fraction form
    228,290.44/315,023.70 = 127,669/x
  3. Step 3: Cross multiply
    228,290.44x = 315,023.70 × 127,669
  4. Step 4: Simplify right side
    228,290.44x = 40,218,760,755.30
  5. Step 5: Solve for x
    x = 40,218,760,755.30/228,290.44
  6. Step 6: Final answer
    x = 176,173.65

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1.5x scale

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.