Finding the Fourth Proportional to 230,545.13, 318,154.70 and 129,943.13
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Solution
The fourth proportional to 230,545.13, 318,154.70 and 129,943.13 is: 179,322.88
Step by Step Solution
- Step 1: Write the proportion equation
230,545.13 : 318,154.70 = 129,943.13 : x - Step 2: Convert to fraction form
230,545.13/318,154.70 = 129,943.13/x - Step 3: Cross multiply
230,545.13x = 318,154.70 × 129,943.13 - Step 4: Simplify right side
230,545.13x = 41,342,016,276.30 - Step 5: Solve for x
x = 41,342,016,276.30/230,545.13 - Step 6: Final answer
x = 179,322.88
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1.5x scale
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.