Finding the Fourth Proportional to 279,228.06, 385,335.63 and 151,903.62
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Solution
The fourth proportional to 279,228.06, 385,335.63 and 151,903.62 is: 209,627.49
Step by Step Solution
- Step 1: Write the proportion equation
279,228.06 : 385,335.63 = 151,903.62 : x - Step 2: Convert to fraction form
279,228.06/385,335.63 = 151,903.62/x - Step 3: Cross multiply
279,228.06x = 385,335.63 × 151,903.62 - Step 4: Simplify right side
279,228.06x = 58,533,877,111.98 - Step 5: Solve for x
x = 58,533,877,111.98/279,228.06 - Step 6: Final answer
x = 209,627.49
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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.