Finding the Fourth Proportional to 422,370.68, 633,503.18 and 138,037.44
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Solution
The fourth proportional to 422,370.68, 633,503.18 and 138,037.44 is: 207,038.89
Step by Step Solution
- Step 1: Write the proportion equation
422,370.68 : 633,503.18 = 138,037.44 : x - Step 2: Convert to fraction form
422,370.68/633,503.18 = 138,037.44/x - Step 3: Cross multiply
422,370.68x = 633,503.18 × 138,037.44 - Step 4: Simplify right side
422,370.68x = 87,447,156,699.13 - Step 5: Solve for x
x = 87,447,156,699.13/422,370.68 - Step 6: Final answer
x = 207,038.89
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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.