Finding the Fourth Proportional to 411,407.62, 567,863.21 and 239,366.05
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Solution
The fourth proportional to 411,407.62, 567,863.21 and 239,366.05 is: 330,395.37
Step by Step Solution
- Step 1: Write the proportion equation
411,407.62 : 567,863.21 = 239,366.05 : x - Step 2: Convert to fraction form
411,407.62/567,863.21 = 239,366.05/x - Step 3: Cross multiply
411,407.62x = 567,863.21 × 239,366.05 - Step 4: Simplify right side
411,407.62x = 135,927,173,518.02 - Step 5: Solve for x
x = 135,927,173,518.02/411,407.62 - Step 6: Final answer
x = 330,395.37
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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.