Finding the Fourth Proportional to 472,918.82, 709,490.76 and 153,070.68
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Solution
The fourth proportional to 472,918.82, 709,490.76 and 153,070.68 is: 229,642.45
Step by Step Solution
- Step 1: Write the proportion equation
472,918.82 : 709,490.76 = 153,070.68 : x - Step 2: Convert to fraction form
472,918.82/709,490.76 = 153,070.68/x - Step 3: Cross multiply
472,918.82x = 709,490.76 × 153,070.68 - Step 4: Simplify right side
472,918.82x = 108,602,233,086.92 - Step 5: Solve for x
x = 108,602,233,086.92/472,918.82 - Step 6: Final answer
x = 229,642.45
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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.