Finding the Fourth Proportional to 278,417.93, 417,580.45 and 78,692.99
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Solution
The fourth proportional to 278,417.93, 417,580.45 and 78,692.99 is: 118,026.35
Step by Step Solution
- Step 1: Write the proportion equation
278,417.93 : 417,580.45 = 78,692.99 : x - Step 2: Convert to fraction form
278,417.93/417,580.45 = 78,692.99/x - Step 3: Cross multiply
278,417.93x = 417,580.45 × 78,692.99 - Step 4: Simplify right side
278,417.93x = 32,860,651,891.41 - Step 5: Solve for x
x = 32,860,651,891.41/278,417.93 - Step 6: Final answer
x = 118,026.35
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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.