Finding the Fourth Proportional to 219,313.60, 302,653.28 and 118,711.68
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Solution
The fourth proportional to 219,313.60, 302,653.28 and 118,711.68 is: 163,822.40
Step by Step Solution
- Step 1: Write the proportion equation
219,313.60 : 302,653.28 = 118,711.68 : x - Step 2: Convert to fraction form
219,313.60/302,653.28 = 118,711.68/x - Step 3: Cross multiply
219,313.60x = 302,653.28 × 118,711.68 - Step 4: Simplify right side
219,313.60x = 35,928,479,326.31 - Step 5: Solve for x
x = 35,928,479,326.31/219,313.60 - Step 6: Final answer
x = 163,822.40
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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.