Finding the Fourth Proportional to 238,768.93, 358,197.69 and 78,855.95
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Solution
The fourth proportional to 238,768.93, 358,197.69 and 78,855.95 is: 118,298.55
Step by Step Solution
- Step 1: Write the proportion equation
238,768.93 : 358,197.69 = 78,855.95 : x - Step 2: Convert to fraction form
238,768.93/358,197.69 = 78,855.95/x - Step 3: Cross multiply
238,768.93x = 358,197.69 × 78,855.95 - Step 4: Simplify right side
238,768.93x = 28,246,017,341.77 - Step 5: Solve for x
x = 28,246,017,341.77/238,768.93 - Step 6: Final answer
x = 118,298.55
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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.