Finding the Fourth Proportional to 251,248.74, 346,724.60 and 136,528.28
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Solution
The fourth proportional to 251,248.74, 346,724.60 and 136,528.28 is: 188,409.75
Step by Step Solution
- Step 1: Write the proportion equation
251,248.74 : 346,724.60 = 136,528.28 : x - Step 2: Convert to fraction form
251,248.74/346,724.60 = 136,528.28/x - Step 3: Cross multiply
251,248.74x = 346,724.60 × 136,528.28 - Step 4: Simplify right side
251,248.74x = 47,337,713,271.69 - Step 5: Solve for x
x = 47,337,713,271.69/251,248.74 - Step 6: Final answer
x = 188,409.75
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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.