Finding the Fourth Proportional to 261,763.08, 392,681.74 and 84,228.84
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Solution
The fourth proportional to 261,763.08, 392,681.74 and 84,228.84 is: 126,355.20
Step by Step Solution
- Step 1: Write the proportion equation
261,763.08 : 392,681.74 = 84,228.84 : x - Step 2: Convert to fraction form
261,763.08/392,681.74 = 84,228.84/x - Step 3: Cross multiply
261,763.08x = 392,681.74 × 84,228.84 - Step 4: Simplify right side
261,763.08x = 33,075,127,449.38 - Step 5: Solve for x
x = 33,075,127,449.38/261,763.08 - Step 6: Final answer
x = 126,355.20
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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.