Finding the Fourth Proportional to 431,986.35, 596,135.99 and 238,395.54
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Solution
The fourth proportional to 431,986.35, 596,135.99 and 238,395.54 is: 328,982.99
Step by Step Solution
- Step 1: Write the proportion equation
431,986.35 : 596,135.99 = 238,395.54 : x - Step 2: Convert to fraction form
431,986.35/596,135.99 = 238,395.54/x - Step 3: Cross multiply
431,986.35x = 596,135.99 × 238,395.54 - Step 4: Simplify right side
431,986.35x = 142,116,161,845.47 - Step 5: Solve for x
x = 142,116,161,845.47/431,986.35 - Step 6: Final answer
x = 328,982.99
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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.