Finding the Fourth Proportional to 245,386.08, 338,634.26 and 137,955.20
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Solution
The fourth proportional to 245,386.08, 338,634.26 and 137,955.20 is: 190,379.00
Step by Step Solution
- Step 1: Write the proportion equation
245,386.08 : 338,634.26 = 137,955.20 : x - Step 2: Convert to fraction form
245,386.08/338,634.26 = 137,955.20/x - Step 3: Cross multiply
245,386.08x = 338,634.26 × 137,955.20 - Step 4: Simplify right side
245,386.08x = 46,716,357,065.15 - Step 5: Solve for x
x = 46,716,357,065.15/245,386.08 - Step 6: Final answer
x = 190,379.00
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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.