Finding the Fourth Proportional to 357,355.36, 493,381.18 and 221,534.46
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Solution
The fourth proportional to 357,355.36, 493,381.18 and 221,534.46 is: 305,860.62
Step by Step Solution
- Step 1: Write the proportion equation
357,355.36 : 493,381.18 = 221,534.46 : x - Step 2: Convert to fraction form
357,355.36/493,381.18 = 221,534.46/x - Step 3: Cross multiply
357,355.36x = 493,381.18 × 221,534.46 - Step 4: Simplify right side
357,355.36x = 109,300,933,285.46 - Step 5: Solve for x
x = 109,300,933,285.46/357,355.36 - Step 6: Final answer
x = 305,860.62
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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.