Finding the Fourth Proportional to 400,918.41, 553,057.65 and 247,907.70
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Solution
The fourth proportional to 400,918.41, 553,057.65 and 247,907.70 is: 341,982.92
Step by Step Solution
- Step 1: Write the proportion equation
400,918.41 : 553,057.65 = 247,907.70 : x - Step 2: Convert to fraction form
400,918.41/553,057.65 = 247,907.70/x - Step 3: Cross multiply
400,918.41x = 553,057.65 × 247,907.70 - Step 4: Simplify right side
400,918.41x = 137,107,249,978.91 - Step 5: Solve for x
x = 137,107,249,978.91/400,918.41 - Step 6: Final answer
x = 341,982.92
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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.