Finding the Fourth Proportional to 279,426.05, 385,607.99 and 152,101.63
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Solution
The fourth proportional to 279,426.05, 385,607.99 and 152,101.63 is: 209,900.27
Step by Step Solution
- Step 1: Write the proportion equation
279,426.05 : 385,607.99 = 152,101.63 : x - Step 2: Convert to fraction form
279,426.05/385,607.99 = 152,101.63/x - Step 3: Cross multiply
279,426.05x = 385,607.99 × 152,101.63 - Step 4: Simplify right side
279,426.05x = 58,651,601,131.48 - Step 5: Solve for x
x = 58,651,601,131.48/279,426.05 - Step 6: Final answer
x = 209,900.27
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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.