Finding the Fourth Proportional to 257,822.13, 386,743.66 and 122,816.80
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Solution
The fourth proportional to 257,822.13, 386,743.66 and 122,816.80 is: 184,230.18
Step by Step Solution
- Step 1: Write the proportion equation
257,822.13 : 386,743.66 = 122,816.80 : x - Step 2: Convert to fraction form
257,822.13/386,743.66 = 122,816.80/x - Step 3: Cross multiply
257,822.13x = 386,743.66 × 122,816.80 - Step 4: Simplify right side
257,822.13x = 47,498,617,467.59 - Step 5: Solve for x
x = 47,498,617,467.59/257,822.13 - Step 6: Final answer
x = 184,230.18
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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.