Finding the Fourth Proportional to 356,931.36, 535,446.42 and 120,341.70
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Solution
The fourth proportional to 356,931.36, 535,446.42 and 120,341.70 is: 180,529.20
Step by Step Solution
- Step 1: Write the proportion equation
356,931.36 : 535,446.42 = 120,341.70 : x - Step 2: Convert to fraction form
356,931.36/535,446.42 = 120,341.70/x - Step 3: Cross multiply
356,931.36x = 535,446.42 × 120,341.70 - Step 4: Simplify right side
356,931.36x = 64,436,532,441.71 - Step 5: Solve for x
x = 64,436,532,441.71/356,931.36 - Step 6: Final answer
x = 180,529.20
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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.