Finding the Fourth Proportional to 401,190.84, 553,621.50 and 219,903.12
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Solution
The fourth proportional to 401,190.84, 553,621.50 and 219,903.12 is: 303,454.32
Step by Step Solution
- Step 1: Write the proportion equation
401,190.84 : 553,621.50 = 219,903.12 : x - Step 2: Convert to fraction form
401,190.84/553,621.50 = 219,903.12/x - Step 3: Cross multiply
401,190.84x = 553,621.50 × 219,903.12 - Step 4: Simplify right side
401,190.84x = 121,743,095,149.08 - Step 5: Solve for x
x = 121,743,095,149.08/401,190.84 - Step 6: Final answer
x = 303,454.32
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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.