Finding the Fourth Proportional to 458,427.36, 687,641.31 and 158,907.99
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Solution
The fourth proportional to 458,427.36, 687,641.31 and 158,907.99 is: 238,362.08
Step by Step Solution
- Step 1: Write the proportion equation
458,427.36 : 687,641.31 = 158,907.99 : x - Step 2: Convert to fraction form
458,427.36/687,641.31 = 158,907.99/x - Step 3: Cross multiply
458,427.36x = 687,641.31 × 158,907.99 - Step 4: Simplify right side
458,427.36x = 109,271,698,413.07 - Step 5: Solve for x
x = 109,271,698,413.07/458,427.36 - Step 6: Final answer
x = 238,362.08
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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.