Finding the Fourth Proportional to 383,330.12, 528,995.46 and 213,575.08
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Solution
The fourth proportional to 383,330.12, 528,995.46 and 213,575.08 is: 294,733.55
Step by Step Solution
- Step 1: Write the proportion equation
383,330.12 : 528,995.46 = 213,575.08 : x - Step 2: Convert to fraction form
383,330.12/528,995.46 = 213,575.08/x - Step 3: Cross multiply
383,330.12x = 528,995.46 × 213,575.08 - Step 4: Simplify right side
383,330.12x = 112,980,247,689.14 - Step 5: Solve for x
x = 112,980,247,689.14/383,330.12 - Step 6: Final answer
x = 294,733.55
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1.5x scale
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.