Finding the Fourth Proportional to 286,739.48, 395,657.08 and 164,212.80
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Solution
The fourth proportional to 286,739.48, 395,657.08 and 164,212.80 is: 226,588.81
Step by Step Solution
- Step 1: Write the proportion equation
286,739.48 : 395,657.08 = 164,212.80 : x - Step 2: Convert to fraction form
286,739.48/395,657.08 = 164,212.80/x - Step 3: Cross multiply
286,739.48x = 395,657.08 × 164,212.80 - Step 4: Simplify right side
286,739.48x = 64,971,956,946.62 - Step 5: Solve for x
x = 64,971,956,946.62/286,739.48 - Step 6: Final answer
x = 226,588.81
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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.