Finding the Fourth Proportional to 187,471.71, 258,710.94 and 102,588.75
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Solution
The fourth proportional to 187,471.71, 258,710.94 and 102,588.75 is: 141,572.46
Step by Step Solution
- Step 1: Write the proportion equation
187,471.71 : 258,710.94 = 102,588.75 : x - Step 2: Convert to fraction form
187,471.71/258,710.94 = 102,588.75/x - Step 3: Cross multiply
187,471.71x = 258,710.94 × 102,588.75 - Step 4: Simplify right side
187,471.71x = 26,540,831,945.93 - Step 5: Solve for x
x = 26,540,831,945.93/187,471.71 - Step 6: Final answer
x = 141,572.46
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1.5x scale
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.