Finding the Fourth Proportional to 420,912.30, 631,430.73 and 154,652.07
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Solution
The fourth proportional to 420,912.30, 631,430.73 and 154,652.07 is: 232,000.99
Step by Step Solution
- Step 1: Write the proportion equation
420,912.30 : 631,430.73 = 154,652.07 : x - Step 2: Convert to fraction form
420,912.30/631,430.73 = 154,652.07/x - Step 3: Cross multiply
420,912.30x = 631,430.73 × 154,652.07 - Step 4: Simplify right side
420,912.30x = 97,652,069,456.11 - Step 5: Solve for x
x = 97,652,069,456.11/420,912.30 - Step 6: Final answer
x = 232,000.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.