Finding the Fourth Proportional to 221,782.08, 306,054.24 and 124,985.28
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Solution
The fourth proportional to 221,782.08, 306,054.24 and 124,985.28 is: 172,476.85
Step by Step Solution
- Step 1: Write the proportion equation
221,782.08 : 306,054.24 = 124,985.28 : x - Step 2: Convert to fraction form
221,782.08/306,054.24 = 124,985.28/x - Step 3: Cross multiply
221,782.08x = 306,054.24 × 124,985.28 - Step 4: Simplify right side
221,782.08x = 38,252,274,881.59 - Step 5: Solve for x
x = 38,252,274,881.59/221,782.08 - Step 6: Final answer
x = 172,476.85
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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.