Finding the Fourth Proportional to 219,288.56, 302,620.69 and 128,646.07
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Solution
The fourth proportional to 219,288.56, 302,620.69 and 128,646.07 is: 177,533.02
Step by Step Solution
- Step 1: Write the proportion equation
219,288.56 : 302,620.69 = 128,646.07 : x - Step 2: Convert to fraction form
219,288.56/302,620.69 = 128,646.07/x - Step 3: Cross multiply
219,288.56x = 302,620.69 × 128,646.07 - Step 4: Simplify right side
219,288.56x = 38,930,960,956.08 - Step 5: Solve for x
x = 38,930,960,956.08/219,288.56 - Step 6: Final answer
x = 177,533.02
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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.