Home / 316,191.20-436,524.38-209,071.94

Finding the Fourth Proportional to 316,191.20, 436,524.38 and 209,071.94

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Solution

The fourth proportional to 316,191.20, 436,524.38 and 209,071.94 is: 288,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,191.20 : 436,524.38 = 209,071.94 : x
  2. Step 2: Convert to fraction form
    316,191.20/436,524.38 = 209,071.94/x
  3. Step 3: Cross multiply
    316,191.20x = 436,524.38 × 209,071.94
  4. Step 4: Simplify right side
    316,191.20x = 91,264,998,983.90
  5. Step 5: Solve for x
    x = 91,264,998,983.90/316,191.20
  6. Step 6: Final answer
    x = 288,638.64

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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.