Finding the Fourth Proportional to 316,237.68, 474,339.36 and 79,579.92
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Solution
The fourth proportional to 316,237.68, 474,339.36 and 79,579.92 is: 119,365.56
Step by Step Solution
- Step 1: Write the proportion equation
316,237.68 : 474,339.36 = 79,579.92 : x - Step 2: Convert to fraction form
316,237.68/474,339.36 = 79,579.92/x - Step 3: Cross multiply
316,237.68x = 474,339.36 × 79,579.92 - Step 4: Simplify right side
316,237.68x = 37,747,888,321.65 - Step 5: Solve for x
x = 37,747,888,321.65/316,237.68 - Step 6: Final answer
x = 119,365.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.