Finding the Fourth Proportional to 283,353.58, 391,030.50 and 156,029.68
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Solution
The fourth proportional to 283,353.58, 391,030.50 and 156,029.68 is: 215,322.37
Step by Step Solution
- Step 1: Write the proportion equation
283,353.58 : 391,030.50 = 156,029.68 : x - Step 2: Convert to fraction form
283,353.58/391,030.50 = 156,029.68/x - Step 3: Cross multiply
283,353.58x = 391,030.50 × 156,029.68 - Step 4: Simplify right side
283,353.58x = 61,012,363,785.24 - Step 5: Solve for x
x = 61,012,363,785.24/283,353.58 - Step 6: Final answer
x = 215,322.37
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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.