Finding the Fourth Proportional to 409,501.80, 614,252.70 and 209,755.80
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Solution
The fourth proportional to 409,501.80, 614,252.70 and 209,755.80 is: 314,633.70
Step by Step Solution
- Step 1: Write the proportion equation
409,501.80 : 614,252.70 = 209,755.80 : x - Step 2: Convert to fraction form
409,501.80/614,252.70 = 209,755.80/x - Step 3: Cross multiply
409,501.80x = 614,252.70 × 209,755.80 - Step 4: Simplify right side
409,501.80x = 128,843,066,490.66 - Step 5: Solve for x
x = 128,843,066,490.66/409,501.80 - Step 6: Final answer
x = 314,633.70
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1.5x scale
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.