Finding the Fourth Proportional to 258,370.31, 356,621.18 and 167,720.99
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Solution
The fourth proportional to 258,370.31, 356,621.18 and 167,720.99 is: 231,500.49
Step by Step Solution
- Step 1: Write the proportion equation
258,370.31 : 356,621.18 = 167,720.99 : x - Step 2: Convert to fraction form
258,370.31/356,621.18 = 167,720.99/x - Step 3: Cross multiply
258,370.31x = 356,621.18 × 167,720.99 - Step 4: Simplify right side
258,370.31x = 59,812,854,742.86 - Step 5: Solve for x
x = 59,812,854,742.86/258,370.31 - Step 6: Final answer
x = 231,500.49
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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.