Finding the Fourth Proportional to 315,454.23, 472,787.55 and 157,727.79
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Solution
The fourth proportional to 315,454.23, 472,787.55 and 157,727.79 is: 236,394.79
Step by Step Solution
- Step 1: Write the proportion equation
315,454.23 : 472,787.55 = 157,727.79 : x - Step 2: Convert to fraction form
315,454.23/472,787.55 = 157,727.79/x - Step 3: Cross multiply
315,454.23x = 472,787.55 × 157,727.79 - Step 4: Simplify right side
315,454.23x = 74,571,735,401.01 - Step 5: Solve for x
x = 74,571,735,401.01/315,454.23 - Step 6: Final answer
x = 236,394.79
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1.5x scale
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.