Finding the Fourth Proportional to 208,507.08, 287,740.28 and 113,013.68
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Solution
The fourth proportional to 208,507.08, 287,740.28 and 113,013.68 is: 155,959.15
Step by Step Solution
- Step 1: Write the proportion equation
208,507.08 : 287,740.28 = 113,013.68 : x - Step 2: Convert to fraction form
208,507.08/287,740.28 = 113,013.68/x - Step 3: Cross multiply
208,507.08x = 287,740.28 × 113,013.68 - Step 4: Simplify right side
208,507.08x = 32,518,587,927.03 - Step 5: Solve for x
x = 32,518,587,927.03/208,507.08 - Step 6: Final answer
x = 155,959.15
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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.