Finding the Fourth Proportional to 400,257.84, 600,386.70 and 189,780.96
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Solution
The fourth proportional to 400,257.84, 600,386.70 and 189,780.96 is: 284,671.41
Step by Step Solution
- Step 1: Write the proportion equation
400,257.84 : 600,386.70 = 189,780.96 : x - Step 2: Convert to fraction form
400,257.84/600,386.70 = 189,780.96/x - Step 3: Cross multiply
400,257.84x = 600,386.70 × 189,780.96 - Step 4: Simplify right side
400,257.84x = 113,941,964,297.23 - Step 5: Solve for x
x = 113,941,964,297.23/400,257.84 - Step 6: Final answer
x = 284,671.41
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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.