Finding the Fourth Proportional to 389,345.76, 537,289.74 and 219,579.84
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Solution
The fourth proportional to 389,345.76, 537,289.74 and 219,579.84 is: 303,016.00
Step by Step Solution
- Step 1: Write the proportion equation
389,345.76 : 537,289.74 = 219,579.84 : x - Step 2: Convert to fraction form
389,345.76/537,289.74 = 219,579.84/x - Step 3: Cross multiply
389,345.76x = 537,289.74 × 219,579.84 - Step 4: Simplify right side
389,345.76x = 117,977,995,142.84 - Step 5: Solve for x
x = 117,977,995,142.84/389,345.76 - Step 6: Final answer
x = 303,016.00
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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.