Finding the Fourth Proportional to 306,862.14, 423,461.17 and 170,896.05
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Solution
The fourth proportional to 306,862.14, 423,461.17 and 170,896.05 is: 235,831.77
Step by Step Solution
- Step 1: Write the proportion equation
306,862.14 : 423,461.17 = 170,896.05 : x - Step 2: Convert to fraction form
306,862.14/423,461.17 = 170,896.05/x - Step 3: Cross multiply
306,862.14x = 423,461.17 × 170,896.05 - Step 4: Simplify right side
306,862.14x = 72,367,841,281.38 - Step 5: Solve for x
x = 72,367,841,281.38/306,862.14 - Step 6: Final answer
x = 235,831.77
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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.