Finding the Fourth Proportional to 287,998.74, 432,190.80 and 119,519.08
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Solution
The fourth proportional to 287,998.74, 432,190.80 and 119,519.08 is: 179,358.58
Step by Step Solution
- Step 1: Write the proportion equation
287,998.74 : 432,190.80 = 119,519.08 : x - Step 2: Convert to fraction form
287,998.74/432,190.80 = 119,519.08/x - Step 3: Cross multiply
287,998.74x = 432,190.80 × 119,519.08 - Step 4: Simplify right side
287,998.74x = 51,655,045,719.99 - Step 5: Solve for x
x = 51,655,045,719.99/287,998.74 - Step 6: Final answer
x = 179,358.58
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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.