Finding the Fourth Proportional to 291,957.65, 402,901.67 and 157,821.65
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Solution
The fourth proportional to 291,957.65, 402,901.67 and 157,821.65 is: 217,793.94
Step by Step Solution
- Step 1: Write the proportion equation
291,957.65 : 402,901.67 = 157,821.65 : x - Step 2: Convert to fraction form
291,957.65/402,901.67 = 157,821.65/x - Step 3: Cross multiply
291,957.65x = 402,901.67 × 157,821.65 - Step 4: Simplify right side
291,957.65x = 63,586,606,347.16 - Step 5: Solve for x
x = 63,586,606,347.16/291,957.65 - Step 6: Final answer
x = 217,793.94
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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.