Finding the Fourth Proportional to 353,963.10, 488,432.79 and 210,729.18
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Solution
The fourth proportional to 353,963.10, 488,432.79 and 210,729.18 is: 290,784.66
Step by Step Solution
- Step 1: Write the proportion equation
353,963.10 : 488,432.79 = 210,729.18 : x - Step 2: Convert to fraction form
353,963.10/488,432.79 = 210,729.18/x - Step 3: Cross multiply
353,963.10x = 488,432.79 × 210,729.18 - Step 4: Simplify right side
353,963.10x = 102,927,041,321.81 - Step 5: Solve for x
x = 102,927,041,321.81/353,963.10 - Step 6: Final answer
x = 290,784.66
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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.