Finding the Fourth Proportional to 405,207.80, 559,220.44 and 223,955.12
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Solution
The fourth proportional to 405,207.80, 559,220.44 and 223,955.12 is: 309,076.68
Step by Step Solution
- Step 1: Write the proportion equation
405,207.80 : 559,220.44 = 223,955.12 : x - Step 2: Convert to fraction form
405,207.80/559,220.44 = 223,955.12/x - Step 3: Cross multiply
405,207.80x = 559,220.44 × 223,955.12 - Step 4: Simplify right side
405,207.80x = 125,240,280,746.65 - Step 5: Solve for x
x = 125,240,280,746.65/405,207.80 - Step 6: Final answer
x = 309,076.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.