Finding the Fourth Proportional to 247,365.12, 341,371.47 and 139,932.99
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Solution
The fourth proportional to 247,365.12, 341,371.47 and 139,932.99 is: 193,111.83
Step by Step Solution
- Step 1: Write the proportion equation
247,365.12 : 341,371.47 = 139,932.99 : x - Step 2: Convert to fraction form
247,365.12/341,371.47 = 139,932.99/x - Step 3: Cross multiply
247,365.12x = 341,371.47 × 139,932.99 - Step 4: Simplify right side
247,365.12x = 47,769,130,497.80 - Step 5: Solve for x
x = 47,769,130,497.80/247,365.12 - Step 6: Final answer
x = 193,111.83
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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.