Finding the Fourth Proportional to 430,802.25, 646,203.42 and 115,250.95
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Solution
The fourth proportional to 430,802.25, 646,203.42 and 115,250.95 is: 172,876.44
Step by Step Solution
- Step 1: Write the proportion equation
430,802.25 : 646,203.42 = 115,250.95 : x - Step 2: Convert to fraction form
430,802.25/646,203.42 = 115,250.95/x - Step 3: Cross multiply
430,802.25x = 646,203.42 × 115,250.95 - Step 4: Simplify right side
430,802.25x = 74,475,558,856.00 - Step 5: Solve for x
x = 74,475,558,856.00/430,802.25 - Step 6: Final answer
x = 172,876.44
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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.