Finding the Fourth Proportional to 328,920.18, 453,909.84 and 178,017.18
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Solution
The fourth proportional to 328,920.18, 453,909.84 and 178,017.18 is: 245,663.70
Step by Step Solution
- Step 1: Write the proportion equation
328,920.18 : 453,909.84 = 178,017.18 : x - Step 2: Convert to fraction form
328,920.18/453,909.84 = 178,017.18/x - Step 3: Cross multiply
328,920.18x = 453,909.84 × 178,017.18 - Step 4: Simplify right side
328,920.18x = 80,803,749,691.05 - Step 5: Solve for x
x = 80,803,749,691.05/328,920.18 - Step 6: Final answer
x = 245,663.70
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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.