Finding the Fourth Proportional to 389,346.76, 537,291.12 and 219,580.84
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Solution
The fourth proportional to 389,346.76, 537,291.12 and 219,580.84 is: 303,017.38
Step by Step Solution
- Step 1: Write the proportion equation
389,346.76 : 537,291.12 = 219,580.84 : x - Step 2: Convert to fraction form
389,346.76/537,291.12 = 219,580.84/x - Step 3: Cross multiply
389,346.76x = 537,291.12 × 219,580.84 - Step 4: Simplify right side
389,346.76x = 117,978,835,454.14 - Step 5: Solve for x
x = 117,978,835,454.14/389,346.76 - Step 6: Final answer
x = 303,017.38
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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.