Finding the Fourth Proportional to 280,671.24, 387,352.62 and 153,365.70
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Solution
The fourth proportional to 280,671.24, 387,352.62 and 153,365.70 is: 211,659.04
Step by Step Solution
- Step 1: Write the proportion equation
280,671.24 : 387,352.62 = 153,365.70 : x - Step 2: Convert to fraction form
280,671.24/387,352.62 = 153,365.70/x - Step 3: Cross multiply
280,671.24x = 387,352.62 × 153,365.70 - Step 4: Simplify right side
280,671.24x = 59,406,605,713.13 - Step 5: Solve for x
x = 59,406,605,713.13/280,671.24 - Step 6: Final answer
x = 211,659.04
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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.