Home / 288,161.37-431,878.47-146,042.36

Finding the Fourth Proportional to 288,161.37, 431,878.47 and 146,042.36

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Solution

The fourth proportional to 288,161.37, 431,878.47 and 146,042.36 is: 218,879.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,161.37 : 431,878.47 = 146,042.36 : x
  2. Step 2: Convert to fraction form
    288,161.37/431,878.47 = 146,042.36/x
  3. Step 3: Cross multiply
    288,161.37x = 431,878.47 × 146,042.36
  4. Step 4: Simplify right side
    288,161.37x = 63,072,550,261.78
  5. Step 5: Solve for x
    x = 63,072,550,261.78/288,161.37
  6. Step 6: Final answer
    x = 218,879.27

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1.5x scale

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.