Finding the Fourth Proportional to 291,707.02, 402,555.12 and 157,571.02
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Solution
The fourth proportional to 291,707.02, 402,555.12 and 157,571.02 is: 217,447.70
Step by Step Solution
- Step 1: Write the proportion equation
291,707.02 : 402,555.12 = 157,571.02 : x - Step 2: Convert to fraction form
291,707.02/402,555.12 = 157,571.02/x - Step 3: Cross multiply
291,707.02x = 402,555.12 × 157,571.02 - Step 4: Simplify right side
291,707.02x = 63,431,020,864.62 - Step 5: Solve for x
x = 63,431,020,864.62/291,707.02 - Step 6: Final answer
x = 217,447.70
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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.