Finding the Fourth Proportional to 412.91, 619.17 and 239.63
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Solution
The fourth proportional to 412.91, 619.17 and 239.63 is: 359.34
Step by Step Solution
- Step 1: Write the proportion equation
412.91 : 619.17 = 239.63 : x - Step 2: Convert to fraction form
412.91/619.17 = 239.63/x - Step 3: Cross multiply
412.91x = 619.17 × 239.63 - Step 4: Simplify right side
412.91x = 148,374.96 - Step 5: Solve for x
x = 148,374.96/412.91 - Step 6: Final answer
x = 359.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.