Finding the Fourth Proportional to 257,388.93, 355,076.58 and 161,948.25
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Solution
The fourth proportional to 257,388.93, 355,076.58 and 161,948.25 is: 223,412.99
Step by Step Solution
- Step 1: Write the proportion equation
257,388.93 : 355,076.58 = 161,948.25 : x - Step 2: Convert to fraction form
257,388.93/355,076.58 = 161,948.25/x - Step 3: Cross multiply
257,388.93x = 355,076.58 × 161,948.25 - Step 4: Simplify right side
257,388.93x = 57,504,030,746.99 - Step 5: Solve for x
x = 57,504,030,746.99/257,388.93 - Step 6: Final answer
x = 223,412.99
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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.