Finding the Fourth Proportional to 315,281.10, 472,921.65 and 115,615.02
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Solution
The fourth proportional to 315,281.10, 472,921.65 and 115,615.02 is: 173,422.53
Step by Step Solution
- Step 1: Write the proportion equation
315,281.10 : 472,921.65 = 115,615.02 : x - Step 2: Convert to fraction form
315,281.10/472,921.65 = 115,615.02/x - Step 3: Cross multiply
315,281.10x = 472,921.65 × 115,615.02 - Step 4: Simplify right side
315,281.10x = 54,676,846,023.18 - Step 5: Solve for x
x = 54,676,846,023.18/315,281.10 - Step 6: Final answer
x = 173,422.53
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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.