Finding the Fourth Proportional to 320,838.64, 442,751.95 and 177,595.60
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Solution
The fourth proportional to 320,838.64, 442,751.95 and 177,595.60 is: 245,078.95
Step by Step Solution
- Step 1: Write the proportion equation
320,838.64 : 442,751.95 = 177,595.60 : x - Step 2: Convert to fraction form
320,838.64/442,751.95 = 177,595.60/x - Step 3: Cross multiply
320,838.64x = 442,751.95 × 177,595.60 - Step 4: Simplify right side
320,838.64x = 78,630,798,211.42 - Step 5: Solve for x
x = 78,630,798,211.42/320,838.64 - Step 6: Final answer
x = 245,078.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.