Finding the Fourth Proportional to 470,985.54, 649,964.68 and 256,130.26
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Solution
The fourth proportional to 470,985.54, 649,964.68 and 256,130.26 is: 353,462.28
Step by Step Solution
- Step 1: Write the proportion equation
470,985.54 : 649,964.68 = 256,130.26 : x - Step 2: Convert to fraction form
470,985.54/649,964.68 = 256,130.26/x - Step 3: Cross multiply
470,985.54x = 649,964.68 × 256,130.26 - Step 4: Simplify right side
470,985.54x = 166,475,622,479.22 - Step 5: Solve for x
x = 166,475,622,479.22/470,985.54 - Step 6: Final answer
x = 353,462.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.