Finding the Fourth Proportional to 280,257.93, 386,764.17 and 152,941.74
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Solution
The fourth proportional to 280,257.93, 386,764.17 and 152,941.74 is: 211,064.09
Step by Step Solution
- Step 1: Write the proportion equation
280,257.93 : 386,764.17 = 152,941.74 : x - Step 2: Convert to fraction form
280,257.93/386,764.17 = 152,941.74/x - Step 3: Cross multiply
280,257.93x = 386,764.17 × 152,941.74 - Step 4: Simplify right side
280,257.93x = 59,152,385,129.46 - Step 5: Solve for x
x = 59,152,385,129.46/280,257.93 - Step 6: Final answer
x = 211,064.09
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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.