Finding the Fourth Proportional to 430,163.33, 644,867.72 and 163,746.63
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Solution
The fourth proportional to 430,163.33, 644,867.72 and 163,746.63 is: 245,476.33
Step by Step Solution
- Step 1: Write the proportion equation
430,163.33 : 644,867.72 = 163,746.63 : x - Step 2: Convert to fraction form
430,163.33/644,867.72 = 163,746.63/x - Step 3: Cross multiply
430,163.33x = 644,867.72 × 163,746.63 - Step 4: Simplify right side
430,163.33x = 105,594,915,741.10 - Step 5: Solve for x
x = 105,594,915,741.10/430,163.33 - Step 6: Final answer
x = 245,476.33
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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.