Finding the Fourth Proportional to 286,555.60, 395,438.84 and 159,227.92
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Solution
The fourth proportional to 286,555.60, 395,438.84 and 159,227.92 is: 219,730.15
Step by Step Solution
- Step 1: Write the proportion equation
286,555.60 : 395,438.84 = 159,227.92 : x - Step 2: Convert to fraction form
286,555.60/395,438.84 = 159,227.92/x - Step 3: Cross multiply
286,555.60x = 395,438.84 × 159,227.92 - Step 4: Simplify right side
286,555.60x = 62,964,903,980.41 - Step 5: Solve for x
x = 62,964,903,980.41/286,555.60 - Step 6: Final answer
x = 219,730.15
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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.