Finding the Fourth Proportional to 319,726.80, 479,590.20 and 224,341.20
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Solution
The fourth proportional to 319,726.80, 479,590.20 and 224,341.20 is: 336,511.80
Step by Step Solution
- Step 1: Write the proportion equation
319,726.80 : 479,590.20 = 224,341.20 : x - Step 2: Convert to fraction form
319,726.80/479,590.20 = 224,341.20/x - Step 3: Cross multiply
319,726.80x = 479,590.20 × 224,341.20 - Step 4: Simplify right side
319,726.80x = 107,591,840,976.24 - Step 5: Solve for x
x = 107,591,840,976.24/319,726.80 - Step 6: Final answer
x = 336,511.80
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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.