Finding the Fourth Proportional to 280,764.63, 387,454.25 and 153,440.19
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Solution
The fourth proportional to 280,764.63, 387,454.25 and 153,440.19 is: 211,746.95
Step by Step Solution
- Step 1: Write the proportion equation
280,764.63 : 387,454.25 = 153,440.19 : x - Step 2: Convert to fraction form
280,764.63/387,454.25 = 153,440.19/x - Step 3: Cross multiply
280,764.63x = 387,454.25 × 153,440.19 - Step 4: Simplify right side
280,764.63x = 59,451,054,119.91 - Step 5: Solve for x
x = 59,451,054,119.91/280,764.63 - Step 6: Final answer
x = 211,746.95
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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.