Finding the Fourth Proportional to 278,475.96, 417,152.06 and 128,507.88
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Solution
The fourth proportional to 278,475.96, 417,152.06 and 128,507.88 is: 192,502.53
Step by Step Solution
- Step 1: Write the proportion equation
278,475.96 : 417,152.06 = 128,507.88 : x - Step 2: Convert to fraction form
278,475.96/417,152.06 = 128,507.88/x - Step 3: Cross multiply
278,475.96x = 417,152.06 × 128,507.88 - Step 4: Simplify right side
278,475.96x = 53,607,326,868.23 - Step 5: Solve for x
x = 53,607,326,868.23/278,475.96 - Step 6: Final answer
x = 192,502.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.