Finding the Fourth Proportional to 357,417.22, 493,325.01 and 221,369.62
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Solution
The fourth proportional to 357,417.22, 493,325.01 and 221,369.62 is: 305,545.35
Step by Step Solution
- Step 1: Write the proportion equation
357,417.22 : 493,325.01 = 221,369.62 : x - Step 2: Convert to fraction form
357,417.22/493,325.01 = 221,369.62/x - Step 3: Cross multiply
357,417.22x = 493,325.01 × 221,369.62 - Step 4: Simplify right side
357,417.22x = 109,207,170,000.20 - Step 5: Solve for x
x = 109,207,170,000.20/357,417.22 - Step 6: Final answer
x = 305,545.35
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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.