Finding the Fourth Proportional to 279,192.84, 385,289.12 and 151,868.76
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Solution
The fourth proportional to 279,192.84, 385,289.12 and 151,868.76 is: 209,580.52
Step by Step Solution
- Step 1: Write the proportion equation
279,192.84 : 385,289.12 = 151,868.76 : x - Step 2: Convert to fraction form
279,192.84/385,289.12 = 151,868.76/x - Step 3: Cross multiply
279,192.84x = 385,289.12 × 151,868.76 - Step 4: Simplify right side
279,192.84x = 58,513,380,895.89 - Step 5: Solve for x
x = 58,513,380,895.89/279,192.84 - Step 6: Final answer
x = 209,580.52
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1.5x scale
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.