Finding the Fourth Proportional to 291,699.02, 402,544.08 and 157,563.02
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Solution
The fourth proportional to 291,699.02, 402,544.08 and 157,563.02 is: 217,436.66
Step by Step Solution
- Step 1: Write the proportion equation
291,699.02 : 402,544.08 = 157,563.02 : x - Step 2: Convert to fraction form
291,699.02/402,544.08 = 157,563.02/x - Step 3: Cross multiply
291,699.02x = 402,544.08 × 157,563.02 - Step 4: Simplify right side
291,699.02x = 63,426,061,934.28 - Step 5: Solve for x
x = 63,426,061,934.28/291,699.02 - Step 6: Final answer
x = 217,436.66
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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.