Finding the Fourth Proportional to 282,657.13, 390,128.36 and 173,854.97
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Solution
The fourth proportional to 282,657.13, 390,128.36 and 173,854.97 is: 239,957.70
Step by Step Solution
- Step 1: Write the proportion equation
282,657.13 : 390,128.36 = 173,854.97 : x - Step 2: Convert to fraction form
282,657.13/390,128.36 = 173,854.97/x - Step 3: Cross multiply
282,657.13x = 390,128.36 × 173,854.97 - Step 4: Simplify right side
282,657.13x = 67,825,754,430.00 - Step 5: Solve for x
x = 67,825,754,430.00/282,657.13 - Step 6: Final answer
x = 239,957.70
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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.