Finding the Fourth Proportional to 412,187.70, 618,281.55 and 202,235.70
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Solution
The fourth proportional to 412,187.70, 618,281.55 and 202,235.70 is: 303,353.55
Step by Step Solution
- Step 1: Write the proportion equation
412,187.70 : 618,281.55 = 202,235.70 : x - Step 2: Convert to fraction form
412,187.70/618,281.55 = 202,235.70/x - Step 3: Cross multiply
412,187.70x = 618,281.55 × 202,235.70 - Step 4: Simplify right side
412,187.70x = 125,038,602,061.34 - Step 5: Solve for x
x = 125,038,602,061.34/412,187.70 - Step 6: Final answer
x = 303,353.55
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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.