Finding the Fourth Proportional to 355,263.65, 490,210.30 and 202,307.62
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Solution
The fourth proportional to 355,263.65, 490,210.30 and 202,307.62 is: 279,154.03
Step by Step Solution
- Step 1: Write the proportion equation
355,263.65 : 490,210.30 = 202,307.62 : x - Step 2: Convert to fraction form
355,263.65/490,210.30 = 202,307.62/x - Step 3: Cross multiply
355,263.65x = 490,210.30 × 202,307.62 - Step 4: Simplify right side
355,263.65x = 99,173,279,092.49 - Step 5: Solve for x
x = 99,173,279,092.49/355,263.65 - Step 6: Final answer
x = 279,154.03
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.