Finding the Fourth Proportional to 313,278.05, 432,312.12 and 170,035.02
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Solution
The fourth proportional to 313,278.05, 432,312.12 and 170,035.02 is: 234,642.04
Step by Step Solution
- Step 1: Write the proportion equation
313,278.05 : 432,312.12 = 170,035.02 : x - Step 2: Convert to fraction form
313,278.05/432,312.12 = 170,035.02/x - Step 3: Cross multiply
313,278.05x = 432,312.12 × 170,035.02 - Step 4: Simplify right side
313,278.05x = 73,508,199,970.44 - Step 5: Solve for x
x = 73,508,199,970.44/313,278.05 - Step 6: Final answer
x = 234,642.04
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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.