Finding the Fourth Proportional to 420,568.29, 630,790.14 and 136,283.67
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Solution
The fourth proportional to 420,568.29, 630,790.14 and 136,283.67 is: 204,405.32
Step by Step Solution
- Step 1: Write the proportion equation
420,568.29 : 630,790.14 = 136,283.67 : x - Step 2: Convert to fraction form
420,568.29/630,790.14 = 136,283.67/x - Step 3: Cross multiply
420,568.29x = 630,790.14 × 136,283.67 - Step 4: Simplify right side
420,568.29x = 85,966,395,279.01 - Step 5: Solve for x
x = 85,966,395,279.01/420,568.29 - Step 6: Final answer
x = 204,405.32
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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.