Finding the Fourth Proportional to 410,296.05, 615,444.08 and 129,813.30
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Solution
The fourth proportional to 410,296.05, 615,444.08 and 129,813.30 is: 194,719.95
Step by Step Solution
- Step 1: Write the proportion equation
410,296.05 : 615,444.08 = 129,813.30 : x - Step 2: Convert to fraction form
410,296.05/615,444.08 = 129,813.30/x - Step 3: Cross multiply
410,296.05x = 615,444.08 × 129,813.30 - Step 4: Simplify right side
410,296.05x = 79,892,826,341.20 - Step 5: Solve for x
x = 79,892,826,341.20/410,296.05 - Step 6: Final answer
x = 194,719.95
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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.