Finding the Fourth Proportional to 190,555.41, 285,844.05 and 57,421.80
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Solution
The fourth proportional to 190,555.41, 285,844.05 and 57,421.80 is: 86,136.00
Step by Step Solution
- Step 1: Write the proportion equation
190,555.41 : 285,844.05 = 57,421.80 : x - Step 2: Convert to fraction form
190,555.41/285,844.05 = 57,421.80/x - Step 3: Cross multiply
190,555.41x = 285,844.05 × 57,421.80 - Step 4: Simplify right side
190,555.41x = 16,413,679,870.29 - Step 5: Solve for x
x = 16,413,679,870.29/190,555.41 - Step 6: Final answer
x = 86,136.00
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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.