Home / 324,256.12-447,120.78-210,868.60

Finding the Fourth Proportional to 324,256.12, 447,120.78 and 210,868.60

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Solution

The fourth proportional to 324,256.12, 447,120.78 and 210,868.60 is: 290,769.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,256.12 : 447,120.78 = 210,868.60 : x
  2. Step 2: Convert to fraction form
    324,256.12/447,120.78 = 210,868.60/x
  3. Step 3: Cross multiply
    324,256.12x = 447,120.78 × 210,868.60
  4. Step 4: Simplify right side
    324,256.12x = 94,283,732,909.51
  5. Step 5: Solve for x
    x = 94,283,732,909.51/324,256.12
  6. Step 6: Final answer
    x = 290,769.32

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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.