Finding the Fourth Proportional to 243,686.05, 336,285.63 and 136,256.09
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Solution
The fourth proportional to 243,686.05, 336,285.63 and 136,256.09 is: 188,032.77
Step by Step Solution
- Step 1: Write the proportion equation
243,686.05 : 336,285.63 = 136,256.09 : x - Step 2: Convert to fraction form
243,686.05/336,285.63 = 136,256.09/x - Step 3: Cross multiply
243,686.05x = 336,285.63 × 136,256.09 - Step 4: Simplify right side
243,686.05x = 45,820,963,385.56 - Step 5: Solve for x
x = 45,820,963,385.56/243,686.05 - Step 6: Final answer
x = 188,032.77
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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.