Finding the Fourth Proportional to 468.84, 646.43 and 302.99
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Solution
The fourth proportional to 468.84, 646.43 and 302.99 is: 417.76
Step by Step Solution
- Step 1: Write the proportion equation
468.84 : 646.43 = 302.99 : x - Step 2: Convert to fraction form
468.84/646.43 = 302.99/x - Step 3: Cross multiply
468.84x = 646.43 × 302.99 - Step 4: Simplify right side
468.84x = 195,862.42 - Step 5: Solve for x
x = 195,862.42/468.84 - Step 6: Final answer
x = 417.76
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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.