Finding the Fourth Proportional to 406,769.28, 610,177.16 and 136,789.08
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Solution
The fourth proportional to 406,769.28, 610,177.16 and 136,789.08 is: 205,191.44
Step by Step Solution
- Step 1: Write the proportion equation
406,769.28 : 610,177.16 = 136,789.08 : x - Step 2: Convert to fraction form
406,769.28/610,177.16 = 136,789.08/x - Step 3: Cross multiply
406,769.28x = 610,177.16 × 136,789.08 - Step 4: Simplify right side
406,769.28x = 83,465,572,353.41 - Step 5: Solve for x
x = 83,465,572,353.41/406,769.28 - Step 6: Final answer
x = 205,191.44
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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.