Finding the Fourth Proportional to 430,886.36, 646,029.74 and 190,869.96
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Solution
The fourth proportional to 430,886.36, 646,029.74 and 190,869.96 is: 286,172.14
Step by Step Solution
- Step 1: Write the proportion equation
430,886.36 : 646,029.74 = 190,869.96 : x - Step 2: Convert to fraction form
430,886.36/646,029.74 = 190,869.96/x - Step 3: Cross multiply
430,886.36x = 646,029.74 × 190,869.96 - Step 4: Simplify right side
430,886.36x = 123,307,670,632.61 - Step 5: Solve for x
x = 123,307,670,632.61/430,886.36 - Step 6: Final answer
x = 286,172.14
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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.