Finding the Fourth Proportional to 292,811.20, 438,560.70 and 240,323.20
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Solution
The fourth proportional to 292,811.20, 438,560.70 and 240,323.20 is: 359,946.31
Step by Step Solution
- Step 1: Write the proportion equation
292,811.20 : 438,560.70 = 240,323.20 : x - Step 2: Convert to fraction form
292,811.20/438,560.70 = 240,323.20/x - Step 3: Cross multiply
292,811.20x = 438,560.70 × 240,323.20 - Step 4: Simplify right side
292,811.20x = 105,396,310,818.24 - Step 5: Solve for x
x = 105,396,310,818.24/292,811.20 - Step 6: Final answer
x = 359,946.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.