Finding the Fourth Proportional to 534,937.20, 802,405.80 and 239,449.20
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Solution
The fourth proportional to 534,937.20, 802,405.80 and 239,449.20 is: 359,173.80
Step by Step Solution
- Step 1: Write the proportion equation
534,937.20 : 802,405.80 = 239,449.20 : x - Step 2: Convert to fraction form
534,937.20/802,405.80 = 239,449.20/x - Step 3: Cross multiply
534,937.20x = 802,405.80 × 239,449.20 - Step 4: Simplify right side
534,937.20x = 192,135,426,885.36 - Step 5: Solve for x
x = 192,135,426,885.36/534,937.20 - Step 6: Final answer
x = 359,173.80
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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.