Finding the Fourth Proportional to 286,263.84, 395,045.76 and 157,207.84
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Solution
The fourth proportional to 286,263.84, 395,045.76 and 157,207.84 is: 216,947.73
Step by Step Solution
- Step 1: Write the proportion equation
286,263.84 : 395,045.76 = 157,207.84 : x - Step 2: Convert to fraction form
286,263.84/395,045.76 = 157,207.84/x - Step 3: Cross multiply
286,263.84x = 395,045.76 × 157,207.84 - Step 4: Simplify right side
286,263.84x = 62,104,290,630.76 - Step 5: Solve for x
x = 62,104,290,630.76/286,263.84 - Step 6: Final answer
x = 216,947.73
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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.