Finding the Fourth Proportional to 340,406.68, 469,742.82 and 187,415.08
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Solution
The fourth proportional to 340,406.68, 469,742.82 and 187,415.08 is: 258,622.68
Step by Step Solution
- Step 1: Write the proportion equation
340,406.68 : 469,742.82 = 187,415.08 : x - Step 2: Convert to fraction form
340,406.68/469,742.82 = 187,415.08/x - Step 3: Cross multiply
340,406.68x = 469,742.82 × 187,415.08 - Step 4: Simplify right side
340,406.68x = 88,036,888,189.73 - Step 5: Solve for x
x = 88,036,888,189.73/340,406.68 - Step 6: Final answer
x = 258,622.68
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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.