Home / 316,450.28-436,690.68-173,207.36

Finding the Fourth Proportional to 316,450.28, 436,690.68 and 173,207.36

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Solution

The fourth proportional to 316,450.28, 436,690.68 and 173,207.36 is: 239,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,450.28 : 436,690.68 = 173,207.36 : x
  2. Step 2: Convert to fraction form
    316,450.28/436,690.68 = 173,207.36/x
  3. Step 3: Cross multiply
    316,450.28x = 436,690.68 × 173,207.36
  4. Step 4: Simplify right side
    316,450.28x = 75,638,039,819.40
  5. Step 5: Solve for x
    x = 75,638,039,819.40/316,450.28
  6. Step 6: Final answer
    x = 239,020.30

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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.