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Finding the Fourth Proportional to 290,232.72, 435,349.08 and 103,245.84

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Solution

The fourth proportional to 290,232.72, 435,349.08 and 103,245.84 is: 154,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,232.72 : 435,349.08 = 103,245.84 : x
  2. Step 2: Convert to fraction form
    290,232.72/435,349.08 = 103,245.84/x
  3. Step 3: Cross multiply
    290,232.72x = 435,349.08 × 103,245.84
  4. Step 4: Simplify right side
    290,232.72x = 44,947,981,457.83
  5. Step 5: Solve for x
    x = 44,947,981,457.83/290,232.72
  6. Step 6: Final answer
    x = 154,868.76

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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.