Finding the Fourth Proportional to 346,122.24, 520,012.80 and 221,706.24
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Solution
The fourth proportional to 346,122.24, 520,012.80 and 221,706.24 is: 333,090.65
Step by Step Solution
- Step 1: Write the proportion equation
346,122.24 : 520,012.80 = 221,706.24 : x - Step 2: Convert to fraction form
346,122.24/520,012.80 = 221,706.24/x - Step 3: Cross multiply
346,122.24x = 520,012.80 × 221,706.24 - Step 4: Simplify right side
346,122.24x = 115,290,082,639.87 - Step 5: Solve for x
x = 115,290,082,639.87/346,122.24 - Step 6: Final answer
x = 333,090.65
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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.