Finding the Fourth Proportional to 207,840.48, 286,819.80 and 112,347.12
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Solution
The fourth proportional to 207,840.48, 286,819.80 and 112,347.12 is: 155,038.99
Step by Step Solution
- Step 1: Write the proportion equation
207,840.48 : 286,819.80 = 112,347.12 : x - Step 2: Convert to fraction form
207,840.48/286,819.80 = 112,347.12/x - Step 3: Cross multiply
207,840.48x = 286,819.80 × 112,347.12 - Step 4: Simplify right side
207,840.48x = 32,223,378,488.98 - Step 5: Solve for x
x = 32,223,378,488.98/207,840.48 - Step 6: Final answer
x = 155,038.99
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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.