Home / 216,427.89-298,669.03-120,934.81

Finding the Fourth Proportional to 216,427.89, 298,669.03 and 120,934.81

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Solution

The fourth proportional to 216,427.89, 298,669.03 and 120,934.81 is: 166,889.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,427.89 : 298,669.03 = 120,934.81 : x
  2. Step 2: Convert to fraction form
    216,427.89/298,669.03 = 120,934.81/x
  3. Step 3: Cross multiply
    216,427.89x = 298,669.03 × 120,934.81
  4. Step 4: Simplify right side
    216,427.89x = 36,119,482,395.93
  5. Step 5: Solve for x
    x = 36,119,482,395.93/216,427.89
  6. Step 6: Final answer
    x = 166,889.22

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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.