Finding the Fourth Proportional to 153,487.62, 211,804.65 and 84,574.92
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Solution
The fourth proportional to 153,487.62, 211,804.65 and 84,574.92 is: 116,708.84
Step by Step Solution
- Step 1: Write the proportion equation
153,487.62 : 211,804.65 = 84,574.92 : x - Step 2: Convert to fraction form
153,487.62/211,804.65 = 84,574.92/x - Step 3: Cross multiply
153,487.62x = 211,804.65 × 84,574.92 - Step 4: Simplify right side
153,487.62x = 17,913,361,329.38 - Step 5: Solve for x
x = 17,913,361,329.38/153,487.62 - Step 6: Final answer
x = 116,708.84
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1.5x scale
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.