Finding the Fourth Proportional to 286,261.08, 395,011.42 and 158,922.84
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Solution
The fourth proportional to 286,261.08, 395,011.42 and 158,922.84 is: 219,297.49
Step by Step Solution
- Step 1: Write the proportion equation
286,261.08 : 395,011.42 = 158,922.84 : x - Step 2: Convert to fraction form
286,261.08/395,011.42 = 158,922.84/x - Step 3: Cross multiply
286,261.08x = 395,011.42 × 158,922.84 - Step 4: Simplify right side
286,261.08x = 62,776,336,698.83 - Step 5: Solve for x
x = 62,776,336,698.83/286,261.08 - Step 6: Final answer
x = 219,297.49
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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.