Finding the Fourth Proportional to 439,141.96, 605,987.76 and 245,565.62
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Solution
The fourth proportional to 439,141.96, 605,987.76 and 245,565.62 is: 338,864.82
Step by Step Solution
- Step 1: Write the proportion equation
439,141.96 : 605,987.76 = 245,565.62 : x - Step 2: Convert to fraction form
439,141.96/605,987.76 = 245,565.62/x - Step 3: Cross multiply
439,141.96x = 605,987.76 × 245,565.62 - Step 4: Simplify right side
439,141.96x = 148,809,759,996.81 - Step 5: Solve for x
x = 148,809,759,996.81/439,141.96 - Step 6: Final answer
x = 338,864.82
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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.