Finding the Fourth Proportional to 286,449.02, 395,302.35 and 157,390.19
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Solution
The fourth proportional to 286,449.02, 395,302.35 and 157,390.19 is: 217,199.95
Step by Step Solution
- Step 1: Write the proportion equation
286,449.02 : 395,302.35 = 157,390.19 : x - Step 2: Convert to fraction form
286,449.02/395,302.35 = 157,390.19/x - Step 3: Cross multiply
286,449.02x = 395,302.35 × 157,390.19 - Step 4: Simplify right side
286,449.02x = 62,216,711,973.95 - Step 5: Solve for x
x = 62,216,711,973.95/286,449.02 - Step 6: Final answer
x = 217,199.95
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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.