Finding the Fourth Proportional to 306,897.73, 423,509.92 and 170,931.75
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Solution
The fourth proportional to 306,897.73, 423,509.92 and 170,931.75 is: 235,880.83
Step by Step Solution
- Step 1: Write the proportion equation
306,897.73 : 423,509.92 = 170,931.75 : x - Step 2: Convert to fraction form
306,897.73/423,509.92 = 170,931.75/x - Step 3: Cross multiply
306,897.73x = 423,509.92 × 170,931.75 - Step 4: Simplify right side
306,897.73x = 72,391,291,767.96 - Step 5: Solve for x
x = 72,391,291,767.96/306,897.73 - Step 6: Final answer
x = 235,880.83
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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.