Finding the Fourth Proportional to 320,603.13, 480,905.91 and 120,870.09
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Solution
The fourth proportional to 320,603.13, 480,905.91 and 120,870.09 is: 181,305.59
Step by Step Solution
- Step 1: Write the proportion equation
320,603.13 : 480,905.91 = 120,870.09 : x - Step 2: Convert to fraction form
320,603.13/480,905.91 = 120,870.09/x - Step 3: Cross multiply
320,603.13x = 480,905.91 × 120,870.09 - Step 4: Simplify right side
320,603.13x = 58,127,140,623.23 - Step 5: Solve for x
x = 58,127,140,623.23/320,603.13 - Step 6: Final answer
x = 181,305.59
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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.