Finding the Fourth Proportional to 286,132.32, 394,862.58 and 158,807.88
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Solution
The fourth proportional to 286,132.32, 394,862.58 and 158,807.88 is: 219,154.86
Step by Step Solution
- Step 1: Write the proportion equation
286,132.32 : 394,862.58 = 158,807.88 : x - Step 2: Convert to fraction form
286,132.32/394,862.58 = 158,807.88/x - Step 3: Cross multiply
286,132.32x = 394,862.58 × 158,807.88 - Step 4: Simplify right side
286,132.32x = 62,707,289,221.13 - Step 5: Solve for x
x = 62,707,289,221.13/286,132.32 - Step 6: Final answer
x = 219,154.86
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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.