Finding the Fourth Proportional to 288,913.72, 433,258.26 and 99,338.08
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Solution
The fourth proportional to 288,913.72, 433,258.26 and 99,338.08 is: 148,968.50
Step by Step Solution
- Step 1: Write the proportion equation
288,913.72 : 433,258.26 = 99,338.08 : x - Step 2: Convert to fraction form
288,913.72/433,258.26 = 99,338.08/x - Step 3: Cross multiply
288,913.72x = 433,258.26 × 99,338.08 - Step 4: Simplify right side
288,913.72x = 43,039,043,692.54 - Step 5: Solve for x
x = 43,039,043,692.54/288,913.72 - Step 6: Final answer
x = 148,968.50
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1.5x scale
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.