Finding the Fourth Proportional to 409,551.12, 614,603.48 and 143,313.98
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Solution
The fourth proportional to 409,551.12, 614,603.48 and 143,313.98 is: 215,067.82
Step by Step Solution
- Step 1: Write the proportion equation
409,551.12 : 614,603.48 = 143,313.98 : x - Step 2: Convert to fraction form
409,551.12/614,603.48 = 143,313.98/x - Step 3: Cross multiply
409,551.12x = 614,603.48 × 143,313.98 - Step 4: Simplify right side
409,551.12x = 88,081,267,051.06 - Step 5: Solve for x
x = 88,081,267,051.06/409,551.12 - Step 6: Final answer
x = 215,067.82
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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.