Finding the Fourth Proportional to 402,603.95, 555,595.25 and 221,327.54
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Solution
The fourth proportional to 402,603.95, 555,595.25 and 221,327.54 is: 305,432.99
Step by Step Solution
- Step 1: Write the proportion equation
402,603.95 : 555,595.25 = 221,327.54 : x - Step 2: Convert to fraction form
402,603.95/555,595.25 = 221,327.54/x - Step 3: Cross multiply
402,603.95x = 555,595.25 × 221,327.54 - Step 4: Simplify right side
402,603.95x = 122,968,529,362.02 - Step 5: Solve for x
x = 122,968,529,362.02/402,603.95 - Step 6: Final answer
x = 305,432.99
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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.