Finding the Fourth Proportional to 382,803.20, 528,257.40 and 213,033.68
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Solution
The fourth proportional to 382,803.20, 528,257.40 and 213,033.68 is: 293,980.35
Step by Step Solution
- Step 1: Write the proportion equation
382,803.20 : 528,257.40 = 213,033.68 : x - Step 2: Convert to fraction form
382,803.20/528,257.40 = 213,033.68/x - Step 3: Cross multiply
382,803.20x = 528,257.40 × 213,033.68 - Step 4: Simplify right side
382,803.20x = 112,536,617,909.23 - Step 5: Solve for x
x = 112,536,617,909.23/382,803.20 - Step 6: Final answer
x = 293,980.35
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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.