Finding the Fourth Proportional to 258,798.20, 357,132.74 and 145,599.08
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Solution
The fourth proportional to 258,798.20, 357,132.74 and 145,599.08 is: 200,921.79
Step by Step Solution
- Step 1: Write the proportion equation
258,798.20 : 357,132.74 = 145,599.08 : x - Step 2: Convert to fraction form
258,798.20/357,132.74 = 145,599.08/x - Step 3: Cross multiply
258,798.20x = 357,132.74 × 145,599.08 - Step 4: Simplify right side
258,798.20x = 51,998,195,868.22 - Step 5: Solve for x
x = 51,998,195,868.22/258,798.20 - Step 6: Final answer
x = 200,921.79
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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.