Finding the Fourth Proportional to 430,721.48, 646,226.09 and 190,802.79
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Solution
The fourth proportional to 430,721.48, 646,226.09 and 190,802.79 is: 286,267.92
Step by Step Solution
- Step 1: Write the proportion equation
430,721.48 : 646,226.09 = 190,802.79 : x - Step 2: Convert to fraction form
430,721.48/646,226.09 = 190,802.79/x - Step 3: Cross multiply
430,721.48x = 646,226.09 × 190,802.79 - Step 4: Simplify right side
430,721.48x = 123,301,740,942.79 - Step 5: Solve for x
x = 123,301,740,942.79/430,721.48 - Step 6: Final answer
x = 286,267.92
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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.