Finding the Fourth Proportional to 221,312.84, 305,410.28 and 125,819.56
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Solution
The fourth proportional to 221,312.84, 305,410.28 and 125,819.56 is: 173,630.17
Step by Step Solution
- Step 1: Write the proportion equation
221,312.84 : 305,410.28 = 125,819.56 : x - Step 2: Convert to fraction form
221,312.84/305,410.28 = 125,819.56/x - Step 3: Cross multiply
221,312.84x = 305,410.28 × 125,819.56 - Step 4: Simplify right side
221,312.84x = 38,426,587,049.08 - Step 5: Solve for x
x = 38,426,587,049.08/221,312.84 - Step 6: Final answer
x = 173,630.17
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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.