Home / 216,501.50-298,786.02-121,008.56

Finding the Fourth Proportional to 216,501.50, 298,786.02 and 121,008.56

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Solution

The fourth proportional to 216,501.50, 298,786.02 and 121,008.56 is: 166,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,501.50 : 298,786.02 = 121,008.56 : x
  2. Step 2: Convert to fraction form
    216,501.50/298,786.02 = 121,008.56/x
  3. Step 3: Cross multiply
    216,501.50x = 298,786.02 × 121,008.56
  4. Step 4: Simplify right side
    216,501.50x = 36,155,666,028.33
  5. Step 5: Solve for x
    x = 36,155,666,028.33/216,501.50
  6. Step 6: Final answer
    x = 166,999.61

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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.