Finding the Fourth Proportional to 340,380.80, 469,721.62 and 187,415.80
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Solution
The fourth proportional to 340,380.80, 469,721.62 and 187,415.80 is: 258,631.66
Step by Step Solution
- Step 1: Write the proportion equation
340,380.80 : 469,721.62 = 187,415.80 : x - Step 2: Convert to fraction form
340,380.80/469,721.62 = 187,415.80/x - Step 3: Cross multiply
340,380.80x = 469,721.62 × 187,415.80 - Step 4: Simplify right side
340,380.80x = 88,033,251,546.75 - Step 5: Solve for x
x = 88,033,251,546.75/340,380.80 - Step 6: Final answer
x = 258,631.66
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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.