Finding the Fourth Proportional to 387,392.94, 581,122.80 and 106,910.19
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Solution
The fourth proportional to 387,392.94, 581,122.80 and 106,910.19 is: 160,374.50
Step by Step Solution
- Step 1: Write the proportion equation
387,392.94 : 581,122.80 = 106,910.19 : x - Step 2: Convert to fraction form
387,392.94/581,122.80 = 106,910.19/x - Step 3: Cross multiply
387,392.94x = 581,122.80 × 106,910.19 - Step 4: Simplify right side
387,392.94x = 62,127,948,961.33 - Step 5: Solve for x
x = 62,127,948,961.33/387,392.94 - Step 6: Final answer
x = 160,374.50
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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.