Finding the Fourth Proportional to 291,486.45, 402,279.99 and 170,620.41
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Solution
The fourth proportional to 291,486.45, 402,279.99 and 170,620.41 is: 235,472.96
Step by Step Solution
- Step 1: Write the proportion equation
291,486.45 : 402,279.99 = 170,620.41 : x - Step 2: Convert to fraction form
291,486.45/402,279.99 = 170,620.41/x - Step 3: Cross multiply
291,486.45x = 402,279.99 × 170,620.41 - Step 4: Simplify right side
291,486.45x = 68,637,176,828.60 - Step 5: Solve for x
x = 68,637,176,828.60/291,486.45 - Step 6: Final answer
x = 235,472.96
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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.