Finding the Fourth Proportional to 310,366.13, 465,539.97 and 85,740.08
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Solution
The fourth proportional to 310,366.13, 465,539.97 and 85,740.08 is: 128,607.57
Step by Step Solution
- Step 1: Write the proportion equation
310,366.13 : 465,539.97 = 85,740.08 : x - Step 2: Convert to fraction form
310,366.13/465,539.97 = 85,740.08/x - Step 3: Cross multiply
310,366.13x = 465,539.97 × 85,740.08 - Step 4: Simplify right side
310,366.13x = 39,915,434,271.00 - Step 5: Solve for x
x = 39,915,434,271.00/310,366.13 - Step 6: Final answer
x = 128,607.57
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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.