Finding the Fourth Proportional to 286,245.84, 395,003.84 and 158,913.23
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Solution
The fourth proportional to 286,245.84, 395,003.84 and 158,913.23 is: 219,291.70
Step by Step Solution
- Step 1: Write the proportion equation
286,245.84 : 395,003.84 = 158,913.23 : x - Step 2: Convert to fraction form
286,245.84/395,003.84 = 158,913.23/x - Step 3: Cross multiply
286,245.84x = 395,003.84 × 158,913.23 - Step 4: Simplify right side
286,245.84x = 62,771,337,461.60 - Step 5: Solve for x
x = 62,771,337,461.60/286,245.84 - Step 6: Final answer
x = 219,291.70
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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.