Home / 211,990.22-292,532.74-121,346.90

Finding the Fourth Proportional to 211,990.22, 292,532.74 and 121,346.90

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Solution

The fourth proportional to 211,990.22, 292,532.74 and 121,346.90 is: 167,450.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,990.22 : 292,532.74 = 121,346.90 : x
  2. Step 2: Convert to fraction form
    211,990.22/292,532.74 = 121,346.90/x
  3. Step 3: Cross multiply
    211,990.22x = 292,532.74 × 121,346.90
  4. Step 4: Simplify right side
    211,990.22x = 35,497,939,381.48
  5. Step 5: Solve for x
    x = 35,497,939,381.48/211,990.22
  6. Step 6: Final answer
    x = 167,450.84

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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.