Finding the Fourth Proportional to 509,183.19, 762,611.36 and 243,130.05
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Solution
The fourth proportional to 509,183.19, 762,611.36 and 243,130.05 is: 364,139.55
Step by Step Solution
- Step 1: Write the proportion equation
509,183.19 : 762,611.36 = 243,130.05 : x - Step 2: Convert to fraction form
509,183.19/762,611.36 = 243,130.05/x - Step 3: Cross multiply
509,183.19x = 762,611.36 × 243,130.05 - Step 4: Simplify right side
509,183.19x = 185,413,736,871.72 - Step 5: Solve for x
x = 185,413,736,871.72/509,183.19 - Step 6: Final answer
x = 364,139.55
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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.