Finding the Fourth Proportional to 224,593.74, 309,991.35 and 129,155.49
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Solution
The fourth proportional to 224,593.74, 309,991.35 and 129,155.49 is: 178,264.47
Step by Step Solution
- Step 1: Write the proportion equation
224,593.74 : 309,991.35 = 129,155.49 : x - Step 2: Convert to fraction form
224,593.74/309,991.35 = 129,155.49/x - Step 3: Cross multiply
224,593.74x = 309,991.35 × 129,155.49 - Step 4: Simplify right side
224,593.74x = 40,037,084,705.01 - Step 5: Solve for x
x = 40,037,084,705.01/224,593.74 - Step 6: Final answer
x = 178,264.47
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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.