Finding the Fourth Proportional to 409,488.29, 614,319.92 and 143,257.49
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Solution
The fourth proportional to 409,488.29, 614,319.92 and 143,257.49 is: 214,916.84
Step by Step Solution
- Step 1: Write the proportion equation
409,488.29 : 614,319.92 = 143,257.49 : x - Step 2: Convert to fraction form
409,488.29/614,319.92 = 143,257.49/x - Step 3: Cross multiply
409,488.29x = 614,319.92 × 143,257.49 - Step 4: Simplify right side
409,488.29x = 88,005,929,796.20 - Step 5: Solve for x
x = 88,005,929,796.20/409,488.29 - Step 6: Final answer
x = 214,916.84
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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.