Home / 218,313.72-301,251.60-122,818.37

Finding the Fourth Proportional to 218,313.72, 301,251.60 and 122,818.37

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Solution

The fourth proportional to 218,313.72, 301,251.60 and 122,818.37 is: 169,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,313.72 : 301,251.60 = 122,818.37 : x
  2. Step 2: Convert to fraction form
    218,313.72/301,251.60 = 122,818.37/x
  3. Step 3: Cross multiply
    218,313.72x = 301,251.60 × 122,818.37
  4. Step 4: Simplify right side
    218,313.72x = 36,999,228,965.63
  5. Step 5: Solve for x
    x = 36,999,228,965.63/218,313.72
  6. Step 6: Final answer
    x = 169,477.34

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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.