Finding the Fourth Proportional to 291,818.26, 402,709.08 and 157,682.26
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Solution
The fourth proportional to 291,818.26, 402,709.08 and 157,682.26 is: 217,601.45
Step by Step Solution
- Step 1: Write the proportion equation
291,818.26 : 402,709.08 = 157,682.26 : x - Step 2: Convert to fraction form
291,818.26/402,709.08 = 157,682.26/x - Step 3: Cross multiply
291,818.26x = 402,709.08 × 157,682.26 - Step 4: Simplify right side
291,818.26x = 63,500,077,856.92 - Step 5: Solve for x
x = 63,500,077,856.92/291,818.26 - Step 6: Final answer
x = 217,601.45
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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.