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Finding the Fourth Proportional to 290,604.67, 435,728.68 and 112,904.23

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Solution

The fourth proportional to 290,604.67, 435,728.68 and 112,904.23 is: 169,287.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,604.67 : 435,728.68 = 112,904.23 : x
  2. Step 2: Convert to fraction form
    290,604.67/435,728.68 = 112,904.23/x
  3. Step 3: Cross multiply
    290,604.67x = 435,728.68 × 112,904.23
  4. Step 4: Simplify right side
    290,604.67x = 49,195,611,104.32
  5. Step 5: Solve for x
    x = 49,195,611,104.32/290,604.67
  6. Step 6: Final answer
    x = 169,287.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.