Finding the Fourth Proportional to 219,985.12, 303,579.68 and 119,383.12
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Solution
The fourth proportional to 219,985.12, 303,579.68 and 119,383.12 is: 164,748.82
Step by Step Solution
- Step 1: Write the proportion equation
219,985.12 : 303,579.68 = 119,383.12 : x - Step 2: Convert to fraction form
219,985.12/303,579.68 = 119,383.12/x - Step 3: Cross multiply
219,985.12x = 303,579.68 × 119,383.12 - Step 4: Simplify right side
219,985.12x = 36,242,289,367.00 - Step 5: Solve for x
x = 36,242,289,367.00/219,985.12 - Step 6: Final answer
x = 164,748.82
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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.