Finding the Fourth Proportional to 316,047.32, 436,263.91 and 207,158.68
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Solution
The fourth proportional to 316,047.32, 436,263.91 and 207,158.68 is: 285,956.71
Step by Step Solution
- Step 1: Write the proportion equation
316,047.32 : 436,263.91 = 207,158.68 : x - Step 2: Convert to fraction form
316,047.32/436,263.91 = 207,158.68/x - Step 3: Cross multiply
316,047.32x = 436,263.91 × 207,158.68 - Step 4: Simplify right side
316,047.32x = 90,375,852,510.13 - Step 5: Solve for x
x = 90,375,852,510.13/316,047.32 - Step 6: Final answer
x = 285,956.71
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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.