Finding the Fourth Proportional to 219,490.16, 302,857.58 and 122,663.06
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Solution
The fourth proportional to 219,490.16, 302,857.58 and 122,663.06 is: 169,253.32
Step by Step Solution
- Step 1: Write the proportion equation
219,490.16 : 302,857.58 = 122,663.06 : x - Step 2: Convert to fraction form
219,490.16/302,857.58 = 122,663.06/x - Step 3: Cross multiply
219,490.16x = 302,857.58 × 122,663.06 - Step 4: Simplify right side
219,490.16x = 37,149,437,435.08 - Step 5: Solve for x
x = 37,149,437,435.08/219,490.16 - Step 6: Final answer
x = 169,253.32
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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.