Finding the Fourth Proportional to 238,390.64, 328,977.84 and 129,494.08
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Solution
The fourth proportional to 238,390.64, 328,977.84 and 129,494.08 is: 178,701.16
Step by Step Solution
- Step 1: Write the proportion equation
238,390.64 : 328,977.84 = 129,494.08 : x - Step 2: Convert to fraction form
238,390.64/328,977.84 = 129,494.08/x - Step 3: Cross multiply
238,390.64x = 328,977.84 × 129,494.08 - Step 4: Simplify right side
238,390.64x = 42,600,682,731.19 - Step 5: Solve for x
x = 42,600,682,731.19/238,390.64 - Step 6: Final answer
x = 178,701.16
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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.