Finding the Fourth Proportional to 282,108.99, 420,231.40 and 266,829.75
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Solution
The fourth proportional to 282,108.99, 420,231.40 and 266,829.75 is: 397,471.35
Step by Step Solution
- Step 1: Write the proportion equation
282,108.99 : 420,231.40 = 266,829.75 : x - Step 2: Convert to fraction form
282,108.99/420,231.40 = 266,829.75/x - Step 3: Cross multiply
282,108.99x = 420,231.40 × 266,829.75 - Step 4: Simplify right side
282,108.99x = 112,130,239,787.65 - Step 5: Solve for x
x = 112,130,239,787.65/282,108.99 - Step 6: Final answer
x = 397,471.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.