Finding the Fourth Proportional to 249,855.76, 344,809.48 and 142,441.68
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Solution
The fourth proportional to 249,855.76, 344,809.48 and 142,441.68 is: 196,574.38
Step by Step Solution
- Step 1: Write the proportion equation
249,855.76 : 344,809.48 = 142,441.68 : x - Step 2: Convert to fraction form
249,855.76/344,809.48 = 142,441.68/x - Step 3: Cross multiply
249,855.76x = 344,809.48 × 142,441.68 - Step 4: Simplify right side
249,855.76x = 49,115,241,611.13 - Step 5: Solve for x
x = 49,115,241,611.13/249,855.76 - Step 6: Final answer
x = 196,574.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.