Finding the Fourth Proportional to 509,980.24, 765,136.76 and 243,761.50
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Solution
The fourth proportional to 509,980.24, 765,136.76 and 243,761.50 is: 365,721.79
Step by Step Solution
- Step 1: Write the proportion equation
509,980.24 : 765,136.76 = 243,761.50 : x - Step 2: Convert to fraction form
509,980.24/765,136.76 = 243,761.50/x - Step 3: Cross multiply
509,980.24x = 765,136.76 × 243,761.50 - Step 4: Simplify right side
509,980.24x = 186,510,884,322.74 - Step 5: Solve for x
x = 186,510,884,322.74/509,980.24 - Step 6: Final answer
x = 365,721.79
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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.