Finding the Fourth Proportional to 391,783.33, 540,431.93 and 246,358.95
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Solution
The fourth proportional to 391,783.33, 540,431.93 and 246,358.95 is: 339,831.32
Step by Step Solution
- Step 1: Write the proportion equation
391,783.33 : 540,431.93 = 246,358.95 : x - Step 2: Convert to fraction form
391,783.33/540,431.93 = 246,358.95/x - Step 3: Cross multiply
391,783.33x = 540,431.93 × 246,358.95 - Step 4: Simplify right side
391,783.33x = 133,140,243,721.31 - Step 5: Solve for x
x = 133,140,243,721.31/391,783.33 - Step 6: Final answer
x = 339,831.32
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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.