Finding the Fourth Proportional to 287,971.58, 432,021.36 and 110,478.71
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Solution
The fourth proportional to 287,971.58, 432,021.36 and 110,478.71 is: 165,742.61
Step by Step Solution
- Step 1: Write the proportion equation
287,971.58 : 432,021.36 = 110,478.71 : x - Step 2: Convert to fraction form
287,971.58/432,021.36 = 110,478.71/x - Step 3: Cross multiply
287,971.58x = 432,021.36 × 110,478.71 - Step 4: Simplify right side
287,971.58x = 47,729,162,545.25 - Step 5: Solve for x
x = 47,729,162,545.25/287,971.58 - Step 6: Final answer
x = 165,742.61
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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.