Finding the Fourth Proportional to 219,116.36, 328,641.50 and 69,337.20
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Solution
The fourth proportional to 219,116.36, 328,641.50 and 69,337.20 is: 103,995.34
Step by Step Solution
- Step 1: Write the proportion equation
219,116.36 : 328,641.50 = 69,337.20 : x - Step 2: Convert to fraction form
219,116.36/328,641.50 = 69,337.20/x - Step 3: Cross multiply
219,116.36x = 328,641.50 × 69,337.20 - Step 4: Simplify right side
219,116.36x = 22,787,081,413.80 - Step 5: Solve for x
x = 22,787,081,413.80/219,116.36 - Step 6: Final answer
x = 103,995.34
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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.