Finding the Fourth Proportional to 402,596.70, 555,590.36 and 221,316.28
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Solution
The fourth proportional to 402,596.70, 555,590.36 and 221,316.28 is: 305,420.27
Step by Step Solution
- Step 1: Write the proportion equation
402,596.70 : 555,590.36 = 221,316.28 : x - Step 2: Convert to fraction form
402,596.70/555,590.36 = 221,316.28/x - Step 3: Cross multiply
402,596.70x = 555,590.36 × 221,316.28 - Step 4: Simplify right side
402,596.70x = 122,961,191,679.06 - Step 5: Solve for x
x = 122,961,191,679.06/402,596.70 - Step 6: Final answer
x = 305,420.27
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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.