Finding the Fourth Proportional to 454,617.18, 681,901.03 and 139,074.09
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Solution
The fourth proportional to 454,617.18, 681,901.03 and 139,074.09 is: 208,603.57
Step by Step Solution
- Step 1: Write the proportion equation
454,617.18 : 681,901.03 = 139,074.09 : x - Step 2: Convert to fraction form
454,617.18/681,901.03 = 139,074.09/x - Step 3: Cross multiply
454,617.18x = 681,901.03 × 139,074.09 - Step 4: Simplify right side
454,617.18x = 94,834,765,217.31 - Step 5: Solve for x
x = 94,834,765,217.31/454,617.18 - Step 6: Final answer
x = 208,603.57
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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.