Finding the Fourth Proportional to 282,136.34, 389,347.08 and 154,814.06
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Solution
The fourth proportional to 282,136.34, 389,347.08 and 154,814.06 is: 213,642.82
Step by Step Solution
- Step 1: Write the proportion equation
282,136.34 : 389,347.08 = 154,814.06 : x - Step 2: Convert to fraction form
282,136.34/389,347.08 = 154,814.06/x - Step 3: Cross multiply
282,136.34x = 389,347.08 × 154,814.06 - Step 4: Simplify right side
282,136.34x = 60,276,402,203.94 - Step 5: Solve for x
x = 60,276,402,203.94/282,136.34 - Step 6: Final answer
x = 213,642.82
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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.