Finding the Fourth Proportional to 429,990.08, 593,338.09 and 257,915.05
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Solution
The fourth proportional to 429,990.08, 593,338.09 and 257,915.05 is: 355,893.85
Step by Step Solution
- Step 1: Write the proportion equation
429,990.08 : 593,338.09 = 257,915.05 : x - Step 2: Convert to fraction form
429,990.08/593,338.09 = 257,915.05/x - Step 3: Cross multiply
429,990.08x = 593,338.09 × 257,915.05 - Step 4: Simplify right side
429,990.08x = 153,030,823,149.26 - Step 5: Solve for x
x = 153,030,823,149.26/429,990.08 - Step 6: Final answer
x = 355,893.85
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.