Finding the Fourth Proportional to 358,331.40, 537,464.70 and 121,681.80
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Solution
The fourth proportional to 358,331.40, 537,464.70 and 121,681.80 is: 182,511.70
Step by Step Solution
- Step 1: Write the proportion equation
358,331.40 : 537,464.70 = 121,681.80 : x - Step 2: Convert to fraction form
358,331.40/537,464.70 = 121,681.80/x - Step 3: Cross multiply
358,331.40x = 537,464.70 × 121,681.80 - Step 4: Simplify right side
358,331.40x = 65,399,672,132.46 - Step 5: Solve for x
x = 65,399,672,132.46/358,331.40 - Step 6: Final answer
x = 182,511.70
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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.