Finding the Fourth Proportional to 448.98, 619.44 and 283.08
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Solution
The fourth proportional to 448.98, 619.44 and 283.08 is: 390.55
Step by Step Solution
- Step 1: Write the proportion equation
448.98 : 619.44 = 283.08 : x - Step 2: Convert to fraction form
448.98/619.44 = 283.08/x - Step 3: Cross multiply
448.98x = 619.44 × 283.08 - Step 4: Simplify right side
448.98x = 175,351.08 - Step 5: Solve for x
x = 175,351.08/448.98 - Step 6: Final answer
x = 390.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.