Finding the Fourth Proportional to 381,718.08, 526,762.80 and 211,949.28
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Solution
The fourth proportional to 381,718.08, 526,762.80 and 211,949.28 is: 292,485.48
Step by Step Solution
- Step 1: Write the proportion equation
381,718.08 : 526,762.80 = 211,949.28 : x - Step 2: Convert to fraction form
381,718.08/526,762.80 = 211,949.28/x - Step 3: Cross multiply
381,718.08x = 526,762.80 × 211,949.28 - Step 4: Simplify right side
381,718.08x = 111,646,996,190.78 - Step 5: Solve for x
x = 111,646,996,190.78/381,718.08 - Step 6: Final answer
x = 292,485.48
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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.