Finding the Fourth Proportional to 283,804.28, 391,652.58 and 156,484.40
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Solution
The fourth proportional to 283,804.28, 391,652.58 and 156,484.40 is: 215,949.95
Step by Step Solution
- Step 1: Write the proportion equation
283,804.28 : 391,652.58 = 156,484.40 : x - Step 2: Convert to fraction form
283,804.28/391,652.58 = 156,484.40/x - Step 3: Cross multiply
283,804.28x = 391,652.58 × 156,484.40 - Step 4: Simplify right side
283,804.28x = 61,287,518,989.75 - Step 5: Solve for x
x = 61,287,518,989.75/283,804.28 - Step 6: Final answer
x = 215,949.95
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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.