Finding the Fourth Proportional to 439,953.75, 607,136.18 and 238,749.75
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Solution
The fourth proportional to 439,953.75, 607,136.18 and 238,749.75 is: 329,474.66
Step by Step Solution
- Step 1: Write the proportion equation
439,953.75 : 607,136.18 = 238,749.75 : x - Step 2: Convert to fraction form
439,953.75/607,136.18 = 238,749.75/x - Step 3: Cross multiply
439,953.75x = 607,136.18 × 238,749.75 - Step 4: Simplify right side
439,953.75x = 144,953,609,997.21 - Step 5: Solve for x
x = 144,953,609,997.21/439,953.75 - Step 6: Final answer
x = 329,474.66
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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.