Home / 218,313.90-301,251.76-122,818.55

Finding the Fourth Proportional to 218,313.90, 301,251.76 and 122,818.55

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Solution

The fourth proportional to 218,313.90, 301,251.76 and 122,818.55 is: 169,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,313.90 : 301,251.76 = 122,818.55 : x
  2. Step 2: Convert to fraction form
    218,313.90/301,251.76 = 122,818.55/x
  3. Step 3: Cross multiply
    218,313.90x = 301,251.76 × 122,818.55
  4. Step 4: Simplify right side
    218,313.90x = 36,999,302,534.84
  5. Step 5: Solve for x
    x = 36,999,302,534.84/218,313.90
  6. Step 6: Final answer
    x = 169,477.54

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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.