Finding the Fourth Proportional to 305,686.71, 458,102.99 and 260,471.90
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Solution
The fourth proportional to 305,686.71, 458,102.99 and 260,471.90 is: 390,343.95
Step by Step Solution
- Step 1: Write the proportion equation
305,686.71 : 458,102.99 = 260,471.90 : x - Step 2: Convert to fraction form
305,686.71/458,102.99 = 260,471.90/x - Step 3: Cross multiply
305,686.71x = 458,102.99 × 260,471.90 - Step 4: Simplify right side
305,686.71x = 119,322,957,997.42 - Step 5: Solve for x
x = 119,322,957,997.42/305,686.71 - Step 6: Final answer
x = 390,343.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.