Finding the Fourth Proportional to 401,279.96, 553,754.36 and 219,985.70
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Solution
The fourth proportional to 401,279.96, 553,754.36 and 219,985.70 is: 303,573.69
Step by Step Solution
- Step 1: Write the proportion equation
401,279.96 : 553,754.36 = 219,985.70 : x - Step 2: Convert to fraction form
401,279.96/553,754.36 = 219,985.70/x - Step 3: Cross multiply
401,279.96x = 553,754.36 × 219,985.70 - Step 4: Simplify right side
401,279.96x = 121,818,038,293.84 - Step 5: Solve for x
x = 121,818,038,293.84/401,279.96 - Step 6: Final answer
x = 303,573.69
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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.