Finding the Fourth Proportional to 257,053.38, 354,735.45 and 149,686.02
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Solution
The fourth proportional to 257,053.38, 354,735.45 and 149,686.02 is: 206,567.75
Step by Step Solution
- Step 1: Write the proportion equation
257,053.38 : 354,735.45 = 149,686.02 : x - Step 2: Convert to fraction form
257,053.38/354,735.45 = 149,686.02/x - Step 3: Cross multiply
257,053.38x = 354,735.45 × 149,686.02 - Step 4: Simplify right side
257,053.38x = 53,098,937,663.41 - Step 5: Solve for x
x = 53,098,937,663.41/257,053.38 - Step 6: Final answer
x = 206,567.75
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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.