Home / 211,454.94-291,801.51-120,810.54

Finding the Fourth Proportional to 211,454.94, 291,801.51 and 120,810.54

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Solution

The fourth proportional to 211,454.94, 291,801.51 and 120,810.54 is: 166,714.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,454.94 : 291,801.51 = 120,810.54 : x
  2. Step 2: Convert to fraction form
    211,454.94/291,801.51 = 120,810.54/x
  3. Step 3: Cross multiply
    211,454.94x = 291,801.51 × 120,810.54
  4. Step 4: Simplify right side
    211,454.94x = 35,252,697,995.92
  5. Step 5: Solve for x
    x = 35,252,697,995.92/211,454.94
  6. Step 6: Final answer
    x = 166,714.94

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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.