Finding the Fourth Proportional to 287,368.04, 431,119.08 and 87,688.05
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Solution
The fourth proportional to 287,368.04, 431,119.08 and 87,688.05 is: 131,552.53
Step by Step Solution
- Step 1: Write the proportion equation
287,368.04 : 431,119.08 = 87,688.05 : x - Step 2: Convert to fraction form
287,368.04/431,119.08 = 87,688.05/x - Step 3: Cross multiply
287,368.04x = 431,119.08 × 87,688.05 - Step 4: Simplify right side
287,368.04x = 37,803,991,442.99 - Step 5: Solve for x
x = 37,803,991,442.99/287,368.04 - Step 6: Final answer
x = 131,552.53
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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.