Finding the Fourth Proportional to 395,970.18, 546,437.10 and 214,681.54
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Solution
The fourth proportional to 395,970.18, 546,437.10 and 214,681.54 is: 296,259.58
Step by Step Solution
- Step 1: Write the proportion equation
395,970.18 : 546,437.10 = 214,681.54 : x - Step 2: Convert to fraction form
395,970.18/546,437.10 = 214,681.54/x - Step 3: Cross multiply
395,970.18x = 546,437.10 × 214,681.54 - Step 4: Simplify right side
395,970.18x = 117,309,958,141.13 - Step 5: Solve for x
x = 117,309,958,141.13/395,970.18 - Step 6: Final answer
x = 296,259.58
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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.