Finding the Fourth Proportional to 291,486.18, 402,351.60 and 170,666.28
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Solution
The fourth proportional to 291,486.18, 402,351.60 and 170,666.28 is: 235,578.41
Step by Step Solution
- Step 1: Write the proportion equation
291,486.18 : 402,351.60 = 170,666.28 : x - Step 2: Convert to fraction form
291,486.18/402,351.60 = 170,666.28/x - Step 3: Cross multiply
291,486.18x = 402,351.60 × 170,666.28 - Step 4: Simplify right side
291,486.18x = 68,667,850,824.05 - Step 5: Solve for x
x = 68,667,850,824.05/291,486.18 - Step 6: Final answer
x = 235,578.41
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1.5x scale
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.