Finding the Fourth Proportional to 228,503.99, 315,371.10 and 130,387.42
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Solution
The fourth proportional to 228,503.99, 315,371.10 and 130,387.42 is: 179,954.95
Step by Step Solution
- Step 1: Write the proportion equation
228,503.99 : 315,371.10 = 130,387.42 : x - Step 2: Convert to fraction form
228,503.99/315,371.10 = 130,387.42/x - Step 3: Cross multiply
228,503.99x = 315,371.10 × 130,387.42 - Step 4: Simplify right side
228,503.99x = 41,120,423,854.58 - Step 5: Solve for x
x = 41,120,423,854.58/228,503.99 - Step 6: Final answer
x = 179,954.95
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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.