Finding the Fourth Proportional to 470,390.40, 705,343.68 and 154,811.52
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Solution
The fourth proportional to 470,390.40, 705,343.68 and 154,811.52 is: 232,137.66
Step by Step Solution
- Step 1: Write the proportion equation
470,390.40 : 705,343.68 = 154,811.52 : x - Step 2: Convert to fraction form
470,390.40/705,343.68 = 154,811.52/x - Step 3: Cross multiply
470,390.40x = 705,343.68 × 154,811.52 - Step 4: Simplify right side
470,390.40x = 109,195,327,223.19 - Step 5: Solve for x
x = 109,195,327,223.19/470,390.40 - Step 6: Final answer
x = 232,137.66
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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.