Home / 211,118.60-291,271.29-120,409.34

Finding the Fourth Proportional to 211,118.60, 291,271.29 and 120,409.34

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Solution

The fourth proportional to 211,118.60, 291,271.29 and 120,409.34 is: 166,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,118.60 : 291,271.29 = 120,409.34 : x
  2. Step 2: Convert to fraction form
    211,118.60/291,271.29 = 120,409.34/x
  3. Step 3: Cross multiply
    211,118.60x = 291,271.29 × 120,409.34
  4. Step 4: Simplify right side
    211,118.60x = 35,071,782,559.26
  5. Step 5: Solve for x
    x = 35,071,782,559.26/211,118.60
  6. Step 6: Final answer
    x = 166,123.60

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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.