Finding the Fourth Proportional to 534,913.20, 802,369.80 and 239,425.20
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Solution
The fourth proportional to 534,913.20, 802,369.80 and 239,425.20 is: 359,137.80
Step by Step Solution
- Step 1: Write the proportion equation
534,913.20 : 802,369.80 = 239,425.20 : x - Step 2: Convert to fraction form
534,913.20/802,369.80 = 239,425.20/x - Step 3: Cross multiply
534,913.20x = 802,369.80 × 239,425.20 - Step 4: Simplify right side
534,913.20x = 192,107,549,838.96 - Step 5: Solve for x
x = 192,107,549,838.96/534,913.20 - Step 6: Final answer
x = 359,137.80
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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.