Finding the Fourth Proportional to 221,174.24, 305,235.12 and 125,681.12
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Solution
The fourth proportional to 221,174.24, 305,235.12 and 125,681.12 is: 173,448.28
Step by Step Solution
- Step 1: Write the proportion equation
221,174.24 : 305,235.12 = 125,681.12 : x - Step 2: Convert to fraction form
221,174.24/305,235.12 = 125,681.12/x - Step 3: Cross multiply
221,174.24x = 305,235.12 × 125,681.12 - Step 4: Simplify right side
221,174.24x = 38,362,291,744.93 - Step 5: Solve for x
x = 38,362,291,744.93/221,174.24 - Step 6: Final answer
x = 173,448.28
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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.