Finding the Fourth Proportional to 430,777.18, 646,165.95 and 193,843.09
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Solution
The fourth proportional to 430,777.18, 646,165.95 and 193,843.09 is: 290,764.72
Step by Step Solution
- Step 1: Write the proportion equation
430,777.18 : 646,165.95 = 193,843.09 : x - Step 2: Convert to fraction form
430,777.18/646,165.95 = 193,843.09/x - Step 3: Cross multiply
430,777.18x = 646,165.95 × 193,843.09 - Step 4: Simplify right side
430,777.18x = 125,254,804,400.79 - Step 5: Solve for x
x = 125,254,804,400.79/430,777.18 - Step 6: Final answer
x = 290,764.72
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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.