Finding the Fourth Proportional to 211,809.24, 317,646.55 and 69,621.70
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Solution
The fourth proportional to 211,809.24, 317,646.55 and 69,621.70 is: 104,410.43
Step by Step Solution
- Step 1: Write the proportion equation
211,809.24 : 317,646.55 = 69,621.70 : x - Step 2: Convert to fraction form
211,809.24/317,646.55 = 69,621.70/x - Step 3: Cross multiply
211,809.24x = 317,646.55 × 69,621.70 - Step 4: Simplify right side
211,809.24x = 22,115,092,810.14 - Step 5: Solve for x
x = 22,115,092,810.14/211,809.24 - Step 6: Final answer
x = 104,410.43
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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.