Home / 217,973.70-300,811.32-122,478.48

Finding the Fourth Proportional to 217,973.70, 300,811.32 and 122,478.48

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Solution

The fourth proportional to 217,973.70, 300,811.32 and 122,478.48 is: 169,024.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,973.70 : 300,811.32 = 122,478.48 : x
  2. Step 2: Convert to fraction form
    217,973.70/300,811.32 = 122,478.48/x
  3. Step 3: Cross multiply
    217,973.70x = 300,811.32 × 122,478.48
  4. Step 4: Simplify right side
    217,973.70x = 36,842,913,240.39
  5. Step 5: Solve for x
    x = 36,842,913,240.39/217,973.70
  6. Step 6: Final answer
    x = 169,024.58

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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.