Finding the Fourth Proportional to 278,461.43, 384,277.14 and 151,136.99
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Solution
The fourth proportional to 278,461.43, 384,277.14 and 151,136.99 is: 208,569.25
Step by Step Solution
- Step 1: Write the proportion equation
278,461.43 : 384,277.14 = 151,136.99 : x - Step 2: Convert to fraction form
278,461.43/384,277.14 = 151,136.99/x - Step 3: Cross multiply
278,461.43x = 384,277.14 × 151,136.99 - Step 4: Simplify right side
278,461.43x = 58,078,490,265.41 - Step 5: Solve for x
x = 58,078,490,265.41/278,461.43 - Step 6: Final answer
x = 208,569.25
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.