Finding the Fourth Proportional to 275,466.74, 413,421.56 and 142,385.99
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Solution
The fourth proportional to 275,466.74, 413,421.56 and 142,385.99 is: 213,693.45
Step by Step Solution
- Step 1: Write the proportion equation
275,466.74 : 413,421.56 = 142,385.99 : x - Step 2: Convert to fraction form
275,466.74/413,421.56 = 142,385.99/x - Step 3: Cross multiply
275,466.74x = 413,421.56 × 142,385.99 - Step 4: Simplify right side
275,466.74x = 58,865,437,396.01 - Step 5: Solve for x
x = 58,865,437,396.01/275,466.74 - Step 6: Final answer
x = 213,693.45
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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.