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Finding the Fourth Proportional to 216,450.99, 298,703.13 and 120,959.28

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Solution

The fourth proportional to 216,450.99, 298,703.13 and 120,959.28 is: 166,924.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,450.99 : 298,703.13 = 120,959.28 : x
  2. Step 2: Convert to fraction form
    216,450.99/298,703.13 = 120,959.28/x
  3. Step 3: Cross multiply
    216,450.99x = 298,703.13 × 120,959.28
  4. Step 4: Simplify right side
    216,450.99x = 36,130,915,538.55
  5. Step 5: Solve for x
    x = 36,130,915,538.55/216,450.99
  6. Step 6: Final answer
    x = 166,924.23

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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.