Finding the Fourth Proportional to 399,142.17, 598,808.93 and 132,905.09
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Solution
The fourth proportional to 399,142.17, 598,808.93 and 132,905.09 is: 199,389.48
Step by Step Solution
- Step 1: Write the proportion equation
399,142.17 : 598,808.93 = 132,905.09 : x - Step 2: Convert to fraction form
399,142.17/598,808.93 = 132,905.09/x - Step 3: Cross multiply
399,142.17x = 598,808.93 × 132,905.09 - Step 4: Simplify right side
399,142.17x = 79,584,751,075.88 - Step 5: Solve for x
x = 79,584,751,075.88/399,142.17 - Step 6: Final answer
x = 199,389.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.