Finding the Fourth Proportional to 155,277.04, 214,289.91 and 87,315.41
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Solution
The fourth proportional to 155,277.04, 214,289.91 and 87,315.41 is: 120,499.53
Step by Step Solution
- Step 1: Write the proportion equation
155,277.04 : 214,289.91 = 87,315.41 : x - Step 2: Convert to fraction form
155,277.04/214,289.91 = 87,315.41/x - Step 3: Cross multiply
155,277.04x = 214,289.91 × 87,315.41 - Step 4: Simplify right side
155,277.04x = 18,710,810,279.06 - Step 5: Solve for x
x = 18,710,810,279.06/155,277.04 - Step 6: Final answer
x = 120,499.53
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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.