Home / 372,457.63-513,991.94-209,091.43

Finding the Fourth Proportional to 372,457.63, 513,991.94 and 209,091.43

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Solution

The fourth proportional to 372,457.63, 513,991.94 and 209,091.43 is: 288,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,457.63 : 513,991.94 = 209,091.43 : x
  2. Step 2: Convert to fraction form
    372,457.63/513,991.94 = 209,091.43/x
  3. Step 3: Cross multiply
    372,457.63x = 513,991.94 × 209,091.43
  4. Step 4: Simplify right side
    372,457.63x = 107,471,309,743.07
  5. Step 5: Solve for x
    x = 107,471,309,743.07/372,457.63
  6. Step 6: Final answer
    x = 288,546.40

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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.