Finding the Fourth Proportional to 470,135.70, 705,203.55 and 137,711.70
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Solution
The fourth proportional to 470,135.70, 705,203.55 and 137,711.70 is: 206,567.55
Step by Step Solution
- Step 1: Write the proportion equation
470,135.70 : 705,203.55 = 137,711.70 : x - Step 2: Convert to fraction form
470,135.70/705,203.55 = 137,711.70/x - Step 3: Cross multiply
470,135.70x = 705,203.55 × 137,711.70 - Step 4: Simplify right side
470,135.70x = 97,114,779,716.54 - Step 5: Solve for x
x = 97,114,779,716.54/470,135.70 - Step 6: Final answer
x = 206,567.55
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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.