Finding the Fourth Proportional to 257,616.84, 386,426.28 and 107,752.02
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Solution
The fourth proportional to 257,616.84, 386,426.28 and 107,752.02 is: 161,628.46
Step by Step Solution
- Step 1: Write the proportion equation
257,616.84 : 386,426.28 = 107,752.02 : x - Step 2: Convert to fraction form
257,616.84/386,426.28 = 107,752.02/x - Step 3: Cross multiply
257,616.84x = 386,426.28 × 107,752.02 - Step 4: Simplify right side
257,616.84x = 41,638,212,251.09 - Step 5: Solve for x
x = 41,638,212,251.09/257,616.84 - Step 6: Final answer
x = 161,628.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.