Home / 222,108.30-306,516.70-121,506.30

Finding the Fourth Proportional to 222,108.30, 306,516.70 and 121,506.30

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Solution

The fourth proportional to 222,108.30, 306,516.70 and 121,506.30 is: 167,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,108.30 : 306,516.70 = 121,506.30 : x
  2. Step 2: Convert to fraction form
    222,108.30/306,516.70 = 121,506.30/x
  3. Step 3: Cross multiply
    222,108.30x = 306,516.70 × 121,506.30
  4. Step 4: Simplify right side
    222,108.30x = 37,243,710,105.21
  5. Step 5: Solve for x
    x = 37,243,710,105.21/222,108.30
  6. Step 6: Final answer
    x = 167,682.66

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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.