Finding the Fourth Proportional to 280,408.55, 420,750.05 and 173,763.95
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Solution
The fourth proportional to 280,408.55, 420,750.05 and 173,763.95 is: 260,730.95
Step by Step Solution
- Step 1: Write the proportion equation
280,408.55 : 420,750.05 = 173,763.95 : x - Step 2: Convert to fraction form
280,408.55/420,750.05 = 173,763.95/x - Step 3: Cross multiply
280,408.55x = 420,750.05 × 173,763.95 - Step 4: Simplify right side
280,408.55x = 73,111,187,678.13 - Step 5: Solve for x
x = 73,111,187,678.13/280,408.55 - Step 6: Final answer
x = 260,730.95
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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.