Finding the Fourth Proportional to 421,152.64, 631,549.14 and 243,782.08
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Solution
The fourth proportional to 421,152.64, 631,549.14 and 243,782.08 is: 365,569.03
Step by Step Solution
- Step 1: Write the proportion equation
421,152.64 : 631,549.14 = 243,782.08 : x - Step 2: Convert to fraction form
421,152.64/631,549.14 = 243,782.08/x - Step 3: Cross multiply
421,152.64x = 631,549.14 × 243,782.08 - Step 4: Simplify right side
421,152.64x = 153,960,362,971.41 - Step 5: Solve for x
x = 153,960,362,971.41/421,152.64 - Step 6: Final answer
x = 365,569.03
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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.