Finding the Fourth Proportional to 318,073.18, 438,935.94 and 174,830.14
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Solution
The fourth proportional to 318,073.18, 438,935.94 and 174,830.14 is: 241,262.82
Step by Step Solution
- Step 1: Write the proportion equation
318,073.18 : 438,935.94 = 174,830.14 : x - Step 2: Convert to fraction form
318,073.18/438,935.94 = 174,830.14/x - Step 3: Cross multiply
318,073.18x = 438,935.94 × 174,830.14 - Step 4: Simplify right side
318,073.18x = 76,739,231,841.23 - Step 5: Solve for x
x = 76,739,231,841.23/318,073.18 - Step 6: Final answer
x = 241,262.82
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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.