Finding the Fourth Proportional to 309,427.47, 464,322.14 and 129,497.87
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Solution
The fourth proportional to 309,427.47, 464,322.14 and 129,497.87 is: 194,322.52
Step by Step Solution
- Step 1: Write the proportion equation
309,427.47 : 464,322.14 = 129,497.87 : x - Step 2: Convert to fraction form
309,427.47/464,322.14 = 129,497.87/x - Step 3: Cross multiply
309,427.47x = 464,322.14 × 129,497.87 - Step 4: Simplify right side
309,427.47x = 60,128,726,510.96 - Step 5: Solve for x
x = 60,128,726,510.96/309,427.47 - Step 6: Final answer
x = 194,322.52
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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.