Finding the Fourth Proportional to 400,929.42, 553,072.82 and 247,918.70
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Solution
The fourth proportional to 400,929.42, 553,072.82 and 247,918.70 is: 341,998.09
Step by Step Solution
- Step 1: Write the proportion equation
400,929.42 : 553,072.82 = 247,918.70 : x - Step 2: Convert to fraction form
400,929.42/553,072.82 = 247,918.70/x - Step 3: Cross multiply
400,929.42x = 553,072.82 × 247,918.70 - Step 4: Simplify right side
400,929.42x = 137,117,094,539.73 - Step 5: Solve for x
x = 137,117,094,539.73/400,929.42 - Step 6: Final answer
x = 341,998.09
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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.