Finding the Fourth Proportional to 286,777.74, 395,763.28 and 157,726.02
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Solution
The fourth proportional to 286,777.74, 395,763.28 and 157,726.02 is: 217,667.41
Step by Step Solution
- Step 1: Write the proportion equation
286,777.74 : 395,763.28 = 157,726.02 : x - Step 2: Convert to fraction form
286,777.74/395,763.28 = 157,726.02/x - Step 3: Cross multiply
286,777.74x = 395,763.28 × 157,726.02 - Step 4: Simplify right side
286,777.74x = 62,422,167,016.55 - Step 5: Solve for x
x = 62,422,167,016.55/286,777.74 - Step 6: Final answer
x = 217,667.41
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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.