Home / 211,516.23-291,907.24-120,885.60

Finding the Fourth Proportional to 211,516.23, 291,907.24 and 120,885.60

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Solution

The fourth proportional to 211,516.23, 291,907.24 and 120,885.60 is: 166,830.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,516.23 : 291,907.24 = 120,885.60 : x
  2. Step 2: Convert to fraction form
    211,516.23/291,907.24 = 120,885.60/x
  3. Step 3: Cross multiply
    211,516.23x = 291,907.24 × 120,885.60
  4. Step 4: Simplify right side
    211,516.23x = 35,287,381,851.74
  5. Step 5: Solve for x
    x = 35,287,381,851.74/211,516.23
  6. Step 6: Final answer
    x = 166,830.61

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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.