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Finding the Fourth Proportional to 290,958.48, 435,828.60 and 234,478.80

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Solution

The fourth proportional to 290,958.48, 435,828.60 and 234,478.80 is: 351,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,958.48 : 435,828.60 = 234,478.80 : x
  2. Step 2: Convert to fraction form
    290,958.48/435,828.60 = 234,478.80/x
  3. Step 3: Cross multiply
    290,958.48x = 435,828.60 × 234,478.80
  4. Step 4: Simplify right side
    290,958.48x = 102,192,567,133.68
  5. Step 5: Solve for x
    x = 102,192,567,133.68/290,958.48
  6. Step 6: Final answer
    x = 351,227.32

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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.