Finding the Fourth Proportional to 353,579.19, 530,204.36 and 128,783.13
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Solution
The fourth proportional to 353,579.19, 530,204.36 and 128,783.13 is: 193,114.81
Step by Step Solution
- Step 1: Write the proportion equation
353,579.19 : 530,204.36 = 128,783.13 : x - Step 2: Convert to fraction form
353,579.19/530,204.36 = 128,783.13/x - Step 3: Cross multiply
353,579.19x = 530,204.36 × 128,783.13 - Step 4: Simplify right side
353,579.19x = 68,281,376,376.53 - Step 5: Solve for x
x = 68,281,376,376.53/353,579.19 - Step 6: Final answer
x = 193,114.81
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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.