Finding the Fourth Proportional to 175,783.08, 242,513.73 and 129,952.80
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Solution
The fourth proportional to 175,783.08, 242,513.73 and 129,952.80 is: 179,285.39
Step by Step Solution
- Step 1: Write the proportion equation
175,783.08 : 242,513.73 = 129,952.80 : x - Step 2: Convert to fraction form
175,783.08/242,513.73 = 129,952.80/x - Step 3: Cross multiply
175,783.08x = 242,513.73 × 129,952.80 - Step 4: Simplify right side
175,783.08x = 31,515,338,251.94 - Step 5: Solve for x
x = 31,515,338,251.94/175,783.08 - Step 6: Final answer
x = 179,285.39
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1.5x scale
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.