Finding the Fourth Proportional to 409,267.80, 613,901.70 and 209,521.80
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Solution
The fourth proportional to 409,267.80, 613,901.70 and 209,521.80 is: 314,282.70
Step by Step Solution
- Step 1: Write the proportion equation
409,267.80 : 613,901.70 = 209,521.80 : x - Step 2: Convert to fraction form
409,267.80/613,901.70 = 209,521.80/x - Step 3: Cross multiply
409,267.80x = 613,901.70 × 209,521.80 - Step 4: Simplify right side
409,267.80x = 128,625,789,207.06 - Step 5: Solve for x
x = 128,625,789,207.06/409,267.80 - Step 6: Final answer
x = 314,282.70
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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.