Finding the Fourth Proportional to 315,108.15, 434,848.99 and 171,867.75
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Solution
The fourth proportional to 315,108.15, 434,848.99 and 171,867.75 is: 237,177.35
Step by Step Solution
- Step 1: Write the proportion equation
315,108.15 : 434,848.99 = 171,867.75 : x - Step 2: Convert to fraction form
315,108.15/434,848.99 = 171,867.75/x - Step 3: Cross multiply
315,108.15x = 434,848.99 × 171,867.75 - Step 4: Simplify right side
315,108.15x = 74,736,517,501.07 - Step 5: Solve for x
x = 74,736,517,501.07/315,108.15 - Step 6: Final answer
x = 237,177.35
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1.5x scale
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.