Home / 211,458.20-291,809.59-120,813.46

Finding the Fourth Proportional to 211,458.20, 291,809.59 and 120,813.46

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Solution

The fourth proportional to 211,458.20, 291,809.59 and 120,813.46 is: 166,721.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,458.20 : 291,809.59 = 120,813.46 : x
  2. Step 2: Convert to fraction form
    211,458.20/291,809.59 = 120,813.46/x
  3. Step 3: Cross multiply
    211,458.20x = 291,809.59 × 120,813.46
  4. Step 4: Simplify right side
    211,458.20x = 35,254,525,197.52
  5. Step 5: Solve for x
    x = 35,254,525,197.52/211,458.20
  6. Step 6: Final answer
    x = 166,721.02

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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.