Finding the Fourth Proportional to 319,029.80, 440,280.74 and 175,789.81
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Solution
The fourth proportional to 319,029.80, 440,280.74 and 175,789.81 is: 242,600.75
Step by Step Solution
- Step 1: Write the proportion equation
319,029.80 : 440,280.74 = 175,789.81 : x - Step 2: Convert to fraction form
319,029.80/440,280.74 = 175,789.81/x - Step 3: Cross multiply
319,029.80x = 440,280.74 × 175,789.81 - Step 4: Simplify right side
319,029.80x = 77,396,867,631.26 - Step 5: Solve for x
x = 77,396,867,631.26/319,029.80 - Step 6: Final answer
x = 242,600.75
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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.