Finding the Fourth Proportional to 423,725.60, 584,745.54 and 230,137.09
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Solution
The fourth proportional to 423,725.60, 584,745.54 and 230,137.09 is: 317,591.47
Step by Step Solution
- Step 1: Write the proportion equation
423,725.60 : 584,745.54 = 230,137.09 : x - Step 2: Convert to fraction form
423,725.60/584,745.54 = 230,137.09/x - Step 3: Cross multiply
423,725.60x = 584,745.54 × 230,137.09 - Step 4: Simplify right side
423,725.60x = 134,571,636,966.08 - Step 5: Solve for x
x = 134,571,636,966.08/423,725.60 - Step 6: Final answer
x = 317,591.47
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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.