Finding the Fourth Proportional to 225,985.47, 311,859.07 and 124,012.63
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Solution
The fourth proportional to 225,985.47, 311,859.07 and 124,012.63 is: 171,136.95
Step by Step Solution
- Step 1: Write the proportion equation
225,985.47 : 311,859.07 = 124,012.63 : x - Step 2: Convert to fraction form
225,985.47/311,859.07 = 124,012.63/x - Step 3: Cross multiply
225,985.47x = 311,859.07 × 124,012.63 - Step 4: Simplify right side
225,985.47x = 38,674,463,460.05 - Step 5: Solve for x
x = 38,674,463,460.05/225,985.47 - Step 6: Final answer
x = 171,136.95
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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.