Finding the Fourth Proportional to 153,206.01, 211,437.06 and 85,235.79
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Solution
The fourth proportional to 153,206.01, 211,437.06 and 85,235.79 is: 117,632.49
Step by Step Solution
- Step 1: Write the proportion equation
153,206.01 : 211,437.06 = 85,235.79 : x - Step 2: Convert to fraction form
153,206.01/211,437.06 = 85,235.79/x - Step 3: Cross multiply
153,206.01x = 211,437.06 × 85,235.79 - Step 4: Simplify right side
153,206.01x = 18,022,004,844.38 - Step 5: Solve for x
x = 18,022,004,844.38/153,206.01 - Step 6: Final answer
x = 117,632.49
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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.