Finding the Fourth Proportional to 328,948.08, 453,948.36 and 178,045.20
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Solution
The fourth proportional to 328,948.08, 453,948.36 and 178,045.20 is: 245,702.38
Step by Step Solution
- Step 1: Write the proportion equation
328,948.08 : 453,948.36 = 178,045.20 : x - Step 2: Convert to fraction form
328,948.08/453,948.36 = 178,045.20/x - Step 3: Cross multiply
328,948.08x = 453,948.36 × 178,045.20 - Step 4: Simplify right side
328,948.08x = 80,823,326,545.87 - Step 5: Solve for x
x = 80,823,326,545.87/328,948.08 - Step 6: Final answer
x = 245,702.38
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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.