Finding the Fourth Proportional to 323,423.70, 485,135.55 and 146,015.70
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Solution
The fourth proportional to 323,423.70, 485,135.55 and 146,015.70 is: 219,023.55
Step by Step Solution
- Step 1: Write the proportion equation
323,423.70 : 485,135.55 = 146,015.70 : x - Step 2: Convert to fraction form
323,423.70/485,135.55 = 146,015.70/x - Step 3: Cross multiply
323,423.70x = 485,135.55 × 146,015.70 - Step 4: Simplify right side
323,423.70x = 70,837,406,928.14 - Step 5: Solve for x
x = 70,837,406,928.14/323,423.70 - Step 6: Final answer
x = 219,023.55
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1.5x scale
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.