Finding the Fourth Proportional to 287,987.19, 432,173.61 and 119,507.68
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Solution
The fourth proportional to 287,987.19, 432,173.61 and 119,507.68 is: 179,341.53
Step by Step Solution
- Step 1: Write the proportion equation
287,987.19 : 432,173.61 = 119,507.68 : x - Step 2: Convert to fraction form
287,987.19/432,173.61 = 119,507.68/x - Step 3: Cross multiply
287,987.19x = 432,173.61 × 119,507.68 - Step 4: Simplify right side
287,987.19x = 51,648,062,729.92 - Step 5: Solve for x
x = 51,648,062,729.92/287,987.19 - Step 6: Final answer
x = 179,341.53
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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.