Finding the Fourth Proportional to 370,979.80, 556,437.30 and 121,661.80
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Solution
The fourth proportional to 370,979.80, 556,437.30 and 121,661.80 is: 182,482.07
Step by Step Solution
- Step 1: Write the proportion equation
370,979.80 : 556,437.30 = 121,661.80 : x - Step 2: Convert to fraction form
370,979.80/556,437.30 = 121,661.80/x - Step 3: Cross multiply
370,979.80x = 556,437.30 × 121,661.80 - Step 4: Simplify right side
370,979.80x = 67,697,163,505.14 - Step 5: Solve for x
x = 67,697,163,505.14/370,979.80 - Step 6: Final answer
x = 182,482.07
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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.