Finding the Fourth Proportional to 311,950.78, 430,545.04 and 176,023.26
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Solution
The fourth proportional to 311,950.78, 430,545.04 and 176,023.26 is: 242,941.98
Step by Step Solution
- Step 1: Write the proportion equation
311,950.78 : 430,545.04 = 176,023.26 : x - Step 2: Convert to fraction form
311,950.78/430,545.04 = 176,023.26/x - Step 3: Cross multiply
311,950.78x = 430,545.04 × 176,023.26 - Step 4: Simplify right side
311,950.78x = 75,785,941,077.57 - Step 5: Solve for x
x = 75,785,941,077.57/311,950.78 - Step 6: Final answer
x = 242,941.98
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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.