Finding the Fourth Proportional to 208,316.07, 312,488.82 and 103,106.79
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Solution
The fourth proportional to 208,316.07, 312,488.82 and 103,106.79 is: 154,667.47
Step by Step Solution
- Step 1: Write the proportion equation
208,316.07 : 312,488.82 = 103,106.79 : x - Step 2: Convert to fraction form
208,316.07/312,488.82 = 103,106.79/x - Step 3: Cross multiply
208,316.07x = 312,488.82 × 103,106.79 - Step 4: Simplify right side
208,316.07x = 32,219,719,141.09 - Step 5: Solve for x
x = 32,219,719,141.09/208,316.07 - Step 6: Final answer
x = 154,667.47
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1.5x scale
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.