Finding the Fourth Proportional to 268,420.75, 370,427.72 and 147,565.09
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Solution
The fourth proportional to 268,420.75, 370,427.72 and 147,565.09 is: 203,643.72
Step by Step Solution
- Step 1: Write the proportion equation
268,420.75 : 370,427.72 = 147,565.09 : x - Step 2: Convert to fraction form
268,420.75/370,427.72 = 147,565.09/x - Step 3: Cross multiply
268,420.75x = 370,427.72 × 147,565.09 - Step 4: Simplify right side
268,420.75x = 54,662,199,840.29 - Step 5: Solve for x
x = 54,662,199,840.29/268,420.75 - Step 6: Final answer
x = 203,643.72
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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.