Finding the Fourth Proportional to 216,898.65, 299,331.32 and 120,102.03
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Solution
The fourth proportional to 216,898.65, 299,331.32 and 120,102.03 is: 165,746.99
Step by Step Solution
- Step 1: Write the proportion equation
216,898.65 : 299,331.32 = 120,102.03 : x - Step 2: Convert to fraction form
216,898.65/299,331.32 = 120,102.03/x - Step 3: Cross multiply
216,898.65x = 299,331.32 × 120,102.03 - Step 4: Simplify right side
216,898.65x = 35,950,298,574.07 - Step 5: Solve for x
x = 35,950,298,574.07/216,898.65 - Step 6: Final answer
x = 165,746.99
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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.