Finding the Fourth Proportional to 223,372.68, 308,256.69 and 121,398.14
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Solution
The fourth proportional to 223,372.68, 308,256.69 and 121,398.14 is: 167,530.72
Step by Step Solution
- Step 1: Write the proportion equation
223,372.68 : 308,256.69 = 121,398.14 : x - Step 2: Convert to fraction form
223,372.68/308,256.69 = 121,398.14/x - Step 3: Cross multiply
223,372.68x = 308,256.69 × 121,398.14 - Step 4: Simplify right side
223,372.68x = 37,421,786,660.28 - Step 5: Solve for x
x = 37,421,786,660.28/223,372.68 - Step 6: Final answer
x = 167,530.72
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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.