Finding the Fourth Proportional to 286,811.56, 430,413.36 and 99,823.06
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Solution
The fourth proportional to 286,811.56, 430,413.36 and 99,823.06 is: 149,802.81
Step by Step Solution
- Step 1: Write the proportion equation
286,811.56 : 430,413.36 = 99,823.06 : x - Step 2: Convert to fraction form
286,811.56/430,413.36 = 99,823.06/x - Step 3: Cross multiply
286,811.56x = 430,413.36 × 99,823.06 - Step 4: Simplify right side
286,811.56x = 42,965,178,660.08 - Step 5: Solve for x
x = 42,965,178,660.08/286,811.56 - Step 6: Final answer
x = 149,802.81
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1.5x scale
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.