Finding the Fourth Proportional to 207,269.20, 310,903.80 and 57,509.20
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Solution
The fourth proportional to 207,269.20, 310,903.80 and 57,509.20 is: 86,263.80
Step by Step Solution
- Step 1: Write the proportion equation
207,269.20 : 310,903.80 = 57,509.20 : x - Step 2: Convert to fraction form
207,269.20/310,903.80 = 57,509.20/x - Step 3: Cross multiply
207,269.20x = 310,903.80 × 57,509.20 - Step 4: Simplify right side
207,269.20x = 17,879,828,814.96 - Step 5: Solve for x
x = 17,879,828,814.96/207,269.20 - Step 6: Final answer
x = 86,263.80
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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.