Finding the Fourth Proportional to 465.84, 643.08 and 291.44
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Solution
The fourth proportional to 465.84, 643.08 and 291.44 is: 402.33
Step by Step Solution
- Step 1: Write the proportion equation
465.84 : 643.08 = 291.44 : x - Step 2: Convert to fraction form
465.84/643.08 = 291.44/x - Step 3: Cross multiply
465.84x = 643.08 × 291.44 - Step 4: Simplify right side
465.84x = 187,419.24 - Step 5: Solve for x
x = 187,419.24/465.84 - Step 6: Final answer
x = 402.33
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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.