Finding the Fourth Proportional to 392,970.02, 542,298.64 and 214,122.02
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Solution
The fourth proportional to 392,970.02, 542,298.64 and 214,122.02 is: 295,488.39
Step by Step Solution
- Step 1: Write the proportion equation
392,970.02 : 542,298.64 = 214,122.02 : x - Step 2: Convert to fraction form
392,970.02/542,298.64 = 214,122.02/x - Step 3: Cross multiply
392,970.02x = 542,298.64 × 214,122.02 - Step 4: Simplify right side
392,970.02x = 116,118,080,240.05 - Step 5: Solve for x
x = 116,118,080,240.05/392,970.02 - Step 6: Final answer
x = 295,488.39
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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.