Finding the Fourth Proportional to 287,124.21, 430,860.60 and 107,340.53
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Solution
The fourth proportional to 287,124.21, 430,860.60 and 107,340.53 is: 161,075.94
Step by Step Solution
- Step 1: Write the proportion equation
287,124.21 : 430,860.60 = 107,340.53 : x - Step 2: Convert to fraction form
287,124.21/430,860.60 = 107,340.53/x - Step 3: Cross multiply
287,124.21x = 430,860.60 × 107,340.53 - Step 4: Simplify right side
287,124.21x = 46,248,803,005.82 - Step 5: Solve for x
x = 46,248,803,005.82/287,124.21 - Step 6: Final answer
x = 161,075.94
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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.