Finding the Fourth Proportional to 409,216.21, 564,746.76 and 248,078.05
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Solution
The fourth proportional to 409,216.21, 564,746.76 and 248,078.05 is: 342,364.92
Step by Step Solution
- Step 1: Write the proportion equation
409,216.21 : 564,746.76 = 248,078.05 : x - Step 2: Convert to fraction form
409,216.21/564,746.76 = 248,078.05/x - Step 3: Cross multiply
409,216.21x = 564,746.76 × 248,078.05 - Step 4: Simplify right side
409,216.21x = 140,101,273,552.75 - Step 5: Solve for x
x = 140,101,273,552.75/409,216.21 - Step 6: Final answer
x = 342,364.92
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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.