Finding the Fourth Proportional to 432,163.20, 648,244.80 and 242,428.80
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Solution
The fourth proportional to 432,163.20, 648,244.80 and 242,428.80 is: 363,643.20
Step by Step Solution
- Step 1: Write the proportion equation
432,163.20 : 648,244.80 = 242,428.80 : x - Step 2: Convert to fraction form
432,163.20/648,244.80 = 242,428.80/x - Step 3: Cross multiply
432,163.20x = 648,244.80 × 242,428.80 - Step 4: Simplify right side
432,163.20x = 157,153,208,970.24 - Step 5: Solve for x
x = 157,153,208,970.24/432,163.20 - Step 6: Final answer
x = 363,643.20
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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.