Finding the Fourth Proportional to 282,503.06, 389,857.10 and 153,442.79
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Solution
The fourth proportional to 282,503.06, 389,857.10 and 153,442.79 is: 211,752.61
Step by Step Solution
- Step 1: Write the proportion equation
282,503.06 : 389,857.10 = 153,442.79 : x - Step 2: Convert to fraction form
282,503.06/389,857.10 = 153,442.79/x - Step 3: Cross multiply
282,503.06x = 389,857.10 × 153,442.79 - Step 4: Simplify right side
282,503.06x = 59,820,759,870.77 - Step 5: Solve for x
x = 59,820,759,870.77/282,503.06 - Step 6: Final answer
x = 211,752.61
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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.