Finding the Fourth Proportional to 219,605.80, 329,408.70 and 53,393.80
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Solution
The fourth proportional to 219,605.80, 329,408.70 and 53,393.80 is: 80,090.70
Step by Step Solution
- Step 1: Write the proportion equation
219,605.80 : 329,408.70 = 53,393.80 : x - Step 2: Convert to fraction form
219,605.80/329,408.70 = 53,393.80/x - Step 3: Cross multiply
219,605.80x = 329,408.70 × 53,393.80 - Step 4: Simplify right side
219,605.80x = 17,588,382,246.06 - Step 5: Solve for x
x = 17,588,382,246.06/219,605.80 - Step 6: Final answer
x = 80,090.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.