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Finding the Fourth Proportional to 290,313.47, 435,359.15 and 95,521.31

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Solution

The fourth proportional to 290,313.47, 435,359.15 and 95,521.31 is: 143,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,313.47 : 435,359.15 = 95,521.31 : x
  2. Step 2: Convert to fraction form
    290,313.47/435,359.15 = 95,521.31/x
  3. Step 3: Cross multiply
    290,313.47x = 435,359.15 × 95,521.31
  4. Step 4: Simplify right side
    290,313.47x = 41,586,073,674.08
  5. Step 5: Solve for x
    x = 41,586,073,674.08/290,313.47
  6. Step 6: Final answer
    x = 143,245.42

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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.