Home / 216,397.88-298,623.48-120,905.24

Finding the Fourth Proportional to 216,397.88, 298,623.48 and 120,905.24

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Solution

The fourth proportional to 216,397.88, 298,623.48 and 120,905.24 is: 166,846.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,397.88 : 298,623.48 = 120,905.24 : x
  2. Step 2: Convert to fraction form
    216,397.88/298,623.48 = 120,905.24/x
  3. Step 3: Cross multiply
    216,397.88x = 298,623.48 × 120,905.24
  4. Step 4: Simplify right side
    216,397.88x = 36,105,143,519.04
  5. Step 5: Solve for x
    x = 36,105,143,519.04/216,397.88
  6. Step 6: Final answer
    x = 166,846.11

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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.