Finding the Fourth Proportional to 287,671.99, 431,586.35 and 87,987.95
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Solution
The fourth proportional to 287,671.99, 431,586.35 and 87,987.95 is: 132,005.89
Step by Step Solution
- Step 1: Write the proportion equation
287,671.99 : 431,586.35 = 87,987.95 : x - Step 2: Convert to fraction form
287,671.99/431,586.35 = 87,987.95/x - Step 3: Cross multiply
287,671.99x = 431,586.35 × 87,987.95 - Step 4: Simplify right side
287,671.99x = 37,974,398,184.48 - Step 5: Solve for x
x = 37,974,398,184.48/287,671.99 - Step 6: Final answer
x = 132,005.89
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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.